21904170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{730139}}^1$

素因数の和:730149

約数の個数: 16

約数和(自身を含む): 52570080

約数和(自身を除く): 30665910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 730139, 1460278, 2190417, 3650695, 4380834, 7301390, 10952085, 21904170]

約数ペア:

[(1, 21904170), (2, 10952085), (3, 7301390), (5, 4380834), (6, 3650695), (10, 2190417), (15, 1460278), (30, 730139)]