66957488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321911}}^1$

素因数の和:321932

約数の個数: 20

約数和(自身を含む): 139709808

約数和(自身を除く): 72752320

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321911, 643822, 1287644, 2575288, 4184843, 5150576, 8369686, 16739372, 33478744, 66957488]

約数ペア:

[(1, 66957488), (2, 33478744), (4, 16739372), (8, 8369686), (13, 5150576), (16, 4184843), (26, 2575288), (52, 1287644), (104, 643822), (208, 321911)]