71921456

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{104537}}^1$

素因数の和:104588

約数の個数: 20

約数和(自身を含む): 142589832

約数和(自身を除く): 70668376

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 104537, 209074, 418148, 836296, 1672592, 4495091, 8990182, 17980364, 35960728, 71921456]

約数ペア:

[(1, 71921456), (2, 35960728), (4, 17980364), (8, 8990182), (16, 4495091), (43, 1672592), (86, 836296), (172, 418148), (344, 209074), (688, 104537)]