21476890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15451}}^1$

素因数の和:15597

約数の個数: 16

約数和(自身を含む): 38939040

約数和(自身を除く): 17462150

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 15451, 30902, 77255, 154510, 2147689, 4295378, 10738445, 21476890]

約数ペア:

[(1, 21476890), (2, 10738445), (5, 4295378), (10, 2147689), (139, 154510), (278, 77255), (695, 30902), (1390, 15451)]