21651928

素因数分解:

$2^3\times {\mathrm{1117}}^1\times {\mathrm{2423}}^1$

素因数の和:3546

約数の個数: 16

約数和(自身を含む): 40650480

約数和(自身を除く): 18998552

約数列:

[1, 2, 4, 8, 1117, 2234, 2423, 4468, 4846, 8936, 9692, 19384, 2706491, 5412982, 10825964, 21651928]

約数ペア:

[(1, 21651928), (2, 10825964), (4, 5412982), (8, 2706491), (1117, 19384), (2234, 9692), (2423, 8936), (4468, 4846)]