21529890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 59220720

約数和(自身を除く): 37690830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 73, 87, 90, 113, 145, 146, 174, 219, 226, 261, 290, 339, 365, 435, 438, 522, 565, 657, 678, 730, 870, 1017, 1095, 1130, 1305, 1314, 1695, 2034, 2117, 2190, 2610, 3277, 3285, 3390, 4234, 5085, 6351, 6554, 6570, 8249, 9831, 10170, 10585, 12702, 16385, 16498, 19053, 19662, 21170, 24747, 29493, 31755, 32770, 38106, 41245, 49155, 49494, 58986, 63510, 74241, 82490, 95265, 98310, 123735, 147465, 148482, 190530, 239221, 247470, 294930, 371205, 478442, 717663, 742410, 1196105, 1435326, 2152989, 2392210, 3588315, 4305978, 7176630, 10764945, 21529890]

約数ペア:

[(1, 21529890), (2, 10764945), (3, 7176630), (5, 4305978), (6, 3588315), (9, 2392210), (10, 2152989), (15, 1435326), (18, 1196105), (29, 742410), (30, 717663), (45, 478442), (58, 371205), (73, 294930), (87, 247470), (90, 239221), (113, 190530), (145, 148482), (146, 147465), (174, 123735), (219, 98310), (226, 95265), (261, 82490), (290, 74241), (339, 63510), (365, 58986), (435, 49494), (438, 49155), (522, 41245), (565, 38106), (657, 32770), (678, 31755), (730, 29493), (870, 24747), (1017, 21170), (1095, 19662), (1130, 19053), (1305, 16498), (1314, 16385), (1695, 12702), (2034, 10585), (2117, 10170), (2190, 9831), (2610, 8249), (3277, 6570), (3285, 6554), (3390, 6351), (4234, 5085)]