21279675

素因数分解:

$3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1879}}^1$

素因数の和:2043

約数の個数: 24

約数和(自身を含む): 35434240

約数和(自身を除く): 14154565

約数列:

[1, 3, 5, 15, 25, 75, 151, 453, 755, 1879, 2265, 3775, 5637, 9395, 11325, 28185, 46975, 140925, 283729, 851187, 1418645, 4255935, 7093225, 21279675]

約数ペア:

[(1, 21279675), (3, 7093225), (5, 4255935), (15, 1418645), (25, 851187), (75, 283729), (151, 140925), (453, 46975), (755, 28185), (1879, 11325), (2265, 9395), (3775, 5637)]