21897616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105277}}^1$

素因数の和:105298

約数の個数: 20

約数和(自身を含む): 45690652

約数和(自身を除く): 23793036

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105277, 210554, 421108, 842216, 1368601, 1684432, 2737202, 5474404, 10948808, 21897616]

約数ペア:

[(1, 21897616), (2, 10948808), (4, 5474404), (8, 2737202), (13, 1684432), (16, 1368601), (26, 842216), (52, 421108), (104, 210554), (208, 105277)]