21289980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354833}}^1$

素因数の和:354845

約数の個数: 24

約数和(自身を含む): 59612112

約数和(自身を除く): 38322132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354833, 709666, 1064499, 1419332, 1774165, 2128998, 3548330, 4257996, 5322495, 7096660, 10644990, 21289980]

約数ペア:

[(1, 21289980), (2, 10644990), (3, 7096660), (4, 5322495), (5, 4257996), (6, 3548330), (10, 2128998), (12, 1774165), (15, 1419332), (20, 1064499), (30, 709666), (60, 354833)]