21403642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2647}}^1$

素因数の和:2973

約数の個数: 16

約数和(自身を含む): 34699392

約数和(自身を除く): 13295750

約数列:

[1, 2, 13, 26, 311, 622, 2647, 4043, 5294, 8086, 34411, 68822, 823217, 1646434, 10701821, 21403642]

約数ペア:

[(1, 21403642), (2, 10701821), (13, 1646434), (26, 823217), (311, 68822), (622, 34411), (2647, 8086), (4043, 5294)]