21174930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 192

約数和(自身を含む): 69638400

約数和(自身を除く): 48463470

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 29, 30, 35, 38, 42, 45, 57, 58, 61, 63, 70, 87, 90, 95, 105, 114, 122, 126, 133, 145, 171, 174, 183, 190, 203, 210, 261, 266, 285, 290, 305, 315, 342, 366, 399, 406, 427, 435, 522, 549, 551, 570, 609, 610, 630, 665, 798, 854, 855, 870, 915, 1015, 1098, 1102, 1159, 1197, 1218, 1281, 1305, 1330, 1653, 1710, 1769, 1827, 1830, 1995, 2030, 2135, 2318, 2394, 2562, 2610, 2745, 2755, 3045, 3306, 3477, 3538, 3654, 3843, 3857, 3990, 4270, 4959, 5307, 5490, 5510, 5795, 5985, 6090, 6405, 6954, 7686, 7714, 8113, 8265, 8845, 9135, 9918, 10431, 10614, 11571, 11590, 11970, 12383, 12810, 15921, 16226, 16530, 17385, 17690, 18270, 19215, 19285, 20862, 23142, 24339, 24766, 24795, 26535, 31842, 33611, 34713, 34770, 37149, 38430, 38570, 40565, 48678, 49590, 52155, 53070, 57855, 61915, 67222, 69426, 73017, 74298, 79605, 81130, 100833, 104310, 111447, 115710, 121695, 123830, 146034, 159210, 168055, 173565, 185745, 201666, 222894, 235277, 243390, 302499, 336110, 347130, 365085, 371490, 470554, 504165, 557235, 604998, 705831, 730170, 1008330, 1114470, 1176385, 1411662, 1512495, 2117493, 2352770, 3024990, 3529155, 4234986, 7058310, 10587465, 21174930]

約数ペア:

[(1, 21174930), (2, 10587465), (3, 7058310), (5, 4234986), (6, 3529155), (7, 3024990), (9, 2352770), (10, 2117493), (14, 1512495), (15, 1411662), (18, 1176385), (19, 1114470), (21, 1008330), (29, 730170), (30, 705831), (35, 604998), (38, 557235), (42, 504165), (45, 470554), (57, 371490), (58, 365085), (61, 347130), (63, 336110), (70, 302499), (87, 243390), (90, 235277), (95, 222894), (105, 201666), (114, 185745), (122, 173565), (126, 168055), (133, 159210), (145, 146034), (171, 123830), (174, 121695), (183, 115710), (190, 111447), (203, 104310), (210, 100833), (261, 81130), (266, 79605), (285, 74298), (290, 73017), (305, 69426), (315, 67222), (342, 61915), (366, 57855), (399, 53070), (406, 52155), (427, 49590), (435, 48678), (522, 40565), (549, 38570), (551, 38430), (570, 37149), (609, 34770), (610, 34713), (630, 33611), (665, 31842), (798, 26535), (854, 24795), (855, 24766), (870, 24339), (915, 23142), (1015, 20862), (1098, 19285), (1102, 19215), (1159, 18270), (1197, 17690), (1218, 17385), (1281, 16530), (1305, 16226), (1330, 15921), (1653, 12810), (1710, 12383), (1769, 11970), (1827, 11590), (1830, 11571), (1995, 10614), (2030, 10431), (2135, 9918), (2318, 9135), (2394, 8845), (2562, 8265), (2610, 8113), (2745, 7714), (2755, 7686), (3045, 6954), (3306, 6405), (3477, 6090), (3538, 5985), (3654, 5795), (3843, 5510), (3857, 5490), (3990, 5307), (4270, 4959)]