21737020

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2269}}^1$

素因数の和:2757

約数の個数: 24

約数和(自身を含む): 45763200

約数和(自身を除く): 24026180

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2269, 2395, 4538, 4790, 9076, 9580, 11345, 22690, 45380, 1086851, 2173702, 4347404, 5434255, 10868510, 21737020]

約数ペア:

[(1, 21737020), (2, 10868510), (4, 5434255), (5, 4347404), (10, 2173702), (20, 1086851), (479, 45380), (958, 22690), (1916, 11345), (2269, 9580), (2395, 9076), (4538, 4790)]