21536550

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:124

約数の個数: 192

約数和(自身を含む): 70709760

約数和(自身を除く): 49173210

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 43, 45, 50, 53, 54, 63, 70, 75, 86, 90, 105, 106, 126, 129, 135, 150, 159, 175, 189, 210, 215, 225, 258, 265, 270, 301, 315, 318, 350, 371, 378, 387, 430, 450, 477, 525, 530, 602, 630, 645, 675, 742, 774, 795, 903, 945, 954, 1050, 1075, 1113, 1161, 1290, 1325, 1350, 1431, 1505, 1575, 1590, 1806, 1855, 1890, 1935, 2150, 2226, 2279, 2322, 2385, 2650, 2709, 2862, 3010, 3150, 3225, 3339, 3710, 3870, 3975, 4515, 4558, 4725, 4770, 5418, 5565, 5805, 6450, 6678, 6837, 7155, 7525, 7950, 8127, 9030, 9275, 9450, 9675, 10017, 11130, 11395, 11610, 11925, 13545, 13674, 14310, 15050, 15953, 16254, 16695, 18550, 19350, 20034, 20511, 22575, 22790, 23850, 27090, 27825, 29025, 31906, 33390, 34185, 35775, 40635, 41022, 45150, 47859, 50085, 55650, 56975, 58050, 61533, 67725, 68370, 71550, 79765, 81270, 83475, 95718, 100170, 102555, 113950, 123066, 135450, 143577, 159530, 166950, 170925, 203175, 205110, 239295, 250425, 287154, 307665, 341850, 398825, 406350, 430731, 478590, 500850, 512775, 615330, 717885, 797650, 861462, 1025550, 1196475, 1435770, 1538325, 2153655, 2392950, 3076650, 3589425, 4307310, 7178850, 10768275, 21536550]

約数ペア:

[(1, 21536550), (2, 10768275), (3, 7178850), (5, 4307310), (6, 3589425), (7, 3076650), (9, 2392950), (10, 2153655), (14, 1538325), (15, 1435770), (18, 1196475), (21, 1025550), (25, 861462), (27, 797650), (30, 717885), (35, 615330), (42, 512775), (43, 500850), (45, 478590), (50, 430731), (53, 406350), (54, 398825), (63, 341850), (70, 307665), (75, 287154), (86, 250425), (90, 239295), (105, 205110), (106, 203175), (126, 170925), (129, 166950), (135, 159530), (150, 143577), (159, 135450), (175, 123066), (189, 113950), (210, 102555), (215, 100170), (225, 95718), (258, 83475), (265, 81270), (270, 79765), (301, 71550), (315, 68370), (318, 67725), (350, 61533), (371, 58050), (378, 56975), (387, 55650), (430, 50085), (450, 47859), (477, 45150), (525, 41022), (530, 40635), (602, 35775), (630, 34185), (645, 33390), (675, 31906), (742, 29025), (774, 27825), (795, 27090), (903, 23850), (945, 22790), (954, 22575), (1050, 20511), (1075, 20034), (1113, 19350), (1161, 18550), (1290, 16695), (1325, 16254), (1350, 15953), (1431, 15050), (1505, 14310), (1575, 13674), (1590, 13545), (1806, 11925), (1855, 11610), (1890, 11395), (1935, 11130), (2150, 10017), (2226, 9675), (2279, 9450), (2322, 9275), (2385, 9030), (2650, 8127), (2709, 7950), (2862, 7525), (3010, 7155), (3150, 6837), (3225, 6678), (3339, 6450), (3710, 5805), (3870, 5565), (3975, 5418), (4515, 4770), (4558, 4725)]