21104820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 288

約数和(自身を含む): 80438400

約数和(自身を除く): 59333580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 19, 20, 22, 27, 30, 33, 34, 36, 38, 44, 45, 51, 54, 55, 57, 60, 66, 68, 76, 85, 90, 95, 99, 102, 108, 110, 114, 121, 132, 135, 153, 165, 170, 171, 180, 187, 190, 198, 204, 209, 220, 228, 242, 255, 270, 285, 297, 306, 323, 330, 340, 342, 363, 374, 380, 396, 418, 459, 484, 495, 510, 513, 540, 561, 570, 594, 605, 612, 627, 646, 660, 684, 726, 748, 765, 836, 855, 918, 935, 969, 990, 1020, 1026, 1045, 1089, 1122, 1140, 1188, 1210, 1254, 1292, 1452, 1485, 1530, 1615, 1683, 1710, 1815, 1836, 1870, 1881, 1938, 1980, 2052, 2057, 2090, 2178, 2244, 2295, 2299, 2420, 2508, 2565, 2805, 2907, 2970, 3060, 3135, 3230, 3267, 3366, 3420, 3553, 3630, 3740, 3762, 3876, 4114, 4180, 4356, 4590, 4598, 4845, 5049, 5130, 5445, 5610, 5643, 5814, 5940, 6171, 6270, 6460, 6534, 6732, 6897, 7106, 7260, 7524, 8228, 8415, 8721, 9180, 9196, 9405, 9690, 10098, 10260, 10285, 10659, 10890, 11220, 11286, 11495, 11628, 12342, 12540, 13068, 13794, 14212, 14535, 16335, 16830, 17442, 17765, 18513, 18810, 19380, 20196, 20570, 20691, 21318, 21780, 22572, 22990, 24684, 25245, 27588, 28215, 29070, 30855, 31977, 32670, 33660, 34485, 34884, 35530, 37026, 37620, 39083, 41140, 41382, 42636, 43605, 45980, 50490, 53295, 55539, 56430, 58140, 61710, 62073, 63954, 65340, 68970, 71060, 74052, 78166, 82764, 87210, 92565, 95931, 100980, 103455, 106590, 111078, 112860, 117249, 123420, 124146, 127908, 137940, 156332, 159885, 174420, 185130, 191862, 195415, 206910, 213180, 222156, 234498, 248292, 277695, 310365, 319770, 351747, 370260, 383724, 390830, 413820, 468996, 479655, 555390, 586245, 620730, 639540, 703494, 781660, 959310, 1055241, 1110780, 1172490, 1241460, 1406988, 1758735, 1918620, 2110482, 2344980, 3517470, 4220964, 5276205, 7034940, 10552410, 21104820]

約数ペア:

[(1, 21104820), (2, 10552410), (3, 7034940), (4, 5276205), (5, 4220964), (6, 3517470), (9, 2344980), (10, 2110482), (11, 1918620), (12, 1758735), (15, 1406988), (17, 1241460), (18, 1172490), (19, 1110780), (20, 1055241), (22, 959310), (27, 781660), (30, 703494), (33, 639540), (34, 620730), (36, 586245), (38, 555390), (44, 479655), (45, 468996), (51, 413820), (54, 390830), (55, 383724), (57, 370260), (60, 351747), (66, 319770), (68, 310365), (76, 277695), (85, 248292), (90, 234498), (95, 222156), (99, 213180), (102, 206910), (108, 195415), (110, 191862), (114, 185130), (121, 174420), (132, 159885), (135, 156332), (153, 137940), (165, 127908), (170, 124146), (171, 123420), (180, 117249), (187, 112860), (190, 111078), (198, 106590), (204, 103455), (209, 100980), (220, 95931), (228, 92565), (242, 87210), (255, 82764), (270, 78166), (285, 74052), (297, 71060), (306, 68970), (323, 65340), (330, 63954), (340, 62073), (342, 61710), (363, 58140), (374, 56430), (380, 55539), (396, 53295), (418, 50490), (459, 45980), (484, 43605), (495, 42636), (510, 41382), (513, 41140), (540, 39083), (561, 37620), (570, 37026), (594, 35530), (605, 34884), (612, 34485), (627, 33660), (646, 32670), (660, 31977), (684, 30855), (726, 29070), (748, 28215), (765, 27588), (836, 25245), (855, 24684), (918, 22990), (935, 22572), (969, 21780), (990, 21318), (1020, 20691), (1026, 20570), (1045, 20196), (1089, 19380), (1122, 18810), (1140, 18513), (1188, 17765), (1210, 17442), (1254, 16830), (1292, 16335), (1452, 14535), (1485, 14212), (1530, 13794), (1615, 13068), (1683, 12540), (1710, 12342), (1815, 11628), (1836, 11495), (1870, 11286), (1881, 11220), (1938, 10890), (1980, 10659), (2052, 10285), (2057, 10260), (2090, 10098), (2178, 9690), (2244, 9405), (2295, 9196), (2299, 9180), (2420, 8721), (2508, 8415), (2565, 8228), (2805, 7524), (2907, 7260), (2970, 7106), (3060, 6897), (3135, 6732), (3230, 6534), (3267, 6460), (3366, 6270), (3420, 6171), (3553, 5940), (3630, 5814), (3740, 5643), (3762, 5610), (3876, 5445), (4114, 5130), (4180, 5049), (4356, 4845), (4590, 4598)]