420996818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{128431}}^1$

素因数の和:128593

約数の個数: 16

約数和(自身を含む): 693532800

約数和(自身を除く): 272535982

約数列:

[1, 2, 11, 22, 149, 298, 1639, 3278, 128431, 256862, 1412741, 2825482, 19136219, 38272438, 210498409, 420996818]

約数ペア:

[(1, 420996818), (2, 210498409), (11, 38272438), (22, 19136219), (149, 2825482), (298, 1412741), (1639, 256862), (3278, 128431)]