20953324

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4591}}^1$

素因数の和:4765

約数の個数: 24

約数和(自身を含む): 42172928

約数和(自身を除く): 21219604

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 4591, 9182, 18364, 32137, 64274, 128548, 748333, 1496666, 2993332, 5238331, 10476662, 20953324]

約数ペア:

[(1, 20953324), (2, 10476662), (4, 5238331), (7, 2993332), (14, 1496666), (28, 748333), (163, 128548), (326, 64274), (652, 32137), (1141, 18364), (2282, 9182), (4564, 4591)]