21556710

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34217}}^1$

素因数の和:34237

約数の個数: 48

約数和(自身を含む): 64056096

約数和(自身を除く): 42499386

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34217, 68434, 102651, 171085, 205302, 239519, 307953, 342170, 479038, 513255, 615906, 718557, 1026510, 1197595, 1437114, 1539765, 2155671, 2395190, 3079530, 3592785, 4311342, 7185570, 10778355, 21556710]

約数ペア:

[(1, 21556710), (2, 10778355), (3, 7185570), (5, 4311342), (6, 3592785), (7, 3079530), (9, 2395190), (10, 2155671), (14, 1539765), (15, 1437114), (18, 1197595), (21, 1026510), (30, 718557), (35, 615906), (42, 513255), (45, 479038), (63, 342170), (70, 307953), (90, 239519), (105, 205302), (126, 171085), (210, 102651), (315, 68434), (630, 34217)]