21103646

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{757}}^1$

素因数の和:1075

約数の個数: 16

約数和(自身を含む): 32418144

約数和(自身を除く): 11314498

約数列:

[1, 2, 53, 106, 263, 526, 757, 1514, 13939, 27878, 40121, 80242, 199091, 398182, 10551823, 21103646]

約数ペア:

[(1, 21103646), (2, 10551823), (53, 398182), (106, 199091), (263, 80242), (526, 40121), (757, 27878), (1514, 13939)]