21815460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:658

約数の個数: 96

約数和(自身を含む): 68947200

約数和(自身を除く): 47131740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 90, 108, 135, 142, 180, 213, 270, 284, 355, 426, 540, 569, 639, 710, 852, 1065, 1138, 1278, 1420, 1707, 1917, 2130, 2276, 2556, 2845, 3195, 3414, 3834, 4260, 5121, 5690, 6390, 6828, 7668, 8535, 9585, 10242, 11380, 12780, 15363, 17070, 19170, 20484, 25605, 30726, 34140, 38340, 40399, 51210, 61452, 76815, 80798, 102420, 121197, 153630, 161596, 201995, 242394, 307260, 363591, 403990, 484788, 605985, 727182, 807980, 1090773, 1211970, 1454364, 1817955, 2181546, 2423940, 3635910, 4363092, 5453865, 7271820, 10907730, 21815460]

約数ペア:

[(1, 21815460), (2, 10907730), (3, 7271820), (4, 5453865), (5, 4363092), (6, 3635910), (9, 2423940), (10, 2181546), (12, 1817955), (15, 1454364), (18, 1211970), (20, 1090773), (27, 807980), (30, 727182), (36, 605985), (45, 484788), (54, 403990), (60, 363591), (71, 307260), (90, 242394), (108, 201995), (135, 161596), (142, 153630), (180, 121197), (213, 102420), (270, 80798), (284, 76815), (355, 61452), (426, 51210), (540, 40399), (569, 38340), (639, 34140), (710, 30726), (852, 25605), (1065, 20484), (1138, 19170), (1278, 17070), (1420, 15363), (1707, 12780), (1917, 11380), (2130, 10242), (2276, 9585), (2556, 8535), (2845, 7668), (3195, 6828), (3414, 6390), (3834, 5690), (4260, 5121)]