20489416

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{69221}}^1$

素因数の和:69264

約数の個数: 16

約数和(自身を含む): 39456540

約数和(自身を除く): 18967124

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 69221, 138442, 276884, 553768, 2561177, 5122354, 10244708, 20489416]

約数ペア:

[(1, 20489416), (2, 10244708), (4, 5122354), (8, 2561177), (37, 553768), (74, 276884), (148, 138442), (296, 69221)]