21211725

素因数分解:

$3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1873}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 35321152

約数和(自身を除く): 14109427

約数列:

[1, 3, 5, 15, 25, 75, 151, 453, 755, 1873, 2265, 3775, 5619, 9365, 11325, 28095, 46825, 140475, 282823, 848469, 1414115, 4242345, 7070575, 21211725]

約数ペア:

[(1, 21211725), (3, 7070575), (5, 4242345), (15, 1414115), (25, 848469), (75, 282823), (151, 140475), (453, 46825), (755, 28095), (1873, 11325), (2265, 9365), (3775, 5619)]