21204788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{587}}^1\times {\mathrm{821}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 40600224

約数和(自身を除く): 19395436

約数列:

[1, 2, 4, 11, 22, 44, 587, 821, 1174, 1642, 2348, 3284, 6457, 9031, 12914, 18062, 25828, 36124, 481927, 963854, 1927708, 5301197, 10602394, 21204788]

約数ペア:

[(1, 21204788), (2, 10602394), (4, 5301197), (11, 1927708), (22, 963854), (44, 481927), (587, 36124), (821, 25828), (1174, 18062), (1642, 12914), (2348, 9031), (3284, 6457)]