421721975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{16267}}^1$

素因数の和:16355

約数の個数: 24

約数和(自身を含む): 562807728

約数和(自身を除く): 141085753

約数列:

[1, 5, 17, 25, 61, 85, 305, 425, 1037, 1525, 5185, 16267, 25925, 81335, 276539, 406675, 992287, 1382695, 4961435, 6913475, 16868879, 24807175, 84344395, 421721975]

約数ペア:

[(1, 421721975), (5, 84344395), (17, 24807175), (25, 16868879), (61, 6913475), (85, 4961435), (305, 1382695), (425, 992287), (1037, 406675), (1525, 276539), (5185, 81335), (16267, 25925)]