21086895

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{23827}}^1$

素因数の和:23894

約数の個数: 16

約数和(自身を含む): 34312320

約数和(自身を除く): 13225425

約数列:

[1, 3, 5, 15, 59, 177, 295, 885, 23827, 71481, 119135, 357405, 1405793, 4217379, 7028965, 21086895]

約数ペア:

[(1, 21086895), (3, 7028965), (5, 4217379), (15, 1405793), (59, 357405), (177, 119135), (295, 71481), (885, 23827)]