21154338

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{12637}}^1$

素因数の和:12679

約数の個数: 32

約数和(自身を含む): 48529920

約数和(自身を除く): 27375582

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674, 12637, 25274, 37911, 75822, 113733, 227466, 341199, 391747, 682398, 783494, 1175241, 2350482, 3525723, 7051446, 10577169, 21154338]

約数ペア:

[(1, 21154338), (2, 10577169), (3, 7051446), (6, 3525723), (9, 2350482), (18, 1175241), (27, 783494), (31, 682398), (54, 391747), (62, 341199), (93, 227466), (186, 113733), (279, 75822), (558, 37911), (837, 25274), (1674, 12637)]