21042222

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81559}}^1$

素因数の和:81607

約数の個数: 16

約数和(自身を含む): 43063680

約数和(自身を除く): 22021458

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81559, 163118, 244677, 489354, 3507037, 7014074, 10521111, 21042222]

約数ペア:

[(1, 21042222), (2, 10521111), (3, 7014074), (6, 3507037), (43, 489354), (86, 244677), (129, 163118), (258, 81559)]