21193875

素因数分解:

$3^2\times 5^3\times {\mathrm{18839}}^1$

素因数の和:18860

約数の個数: 24

約数和(自身を含む): 38207520

約数和(自身を除く): 17013645

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18839, 56517, 94195, 169551, 282585, 470975, 847755, 1412925, 2354875, 4238775, 7064625, 21193875]

約数ペア:

[(1, 21193875), (3, 7064625), (5, 4238775), (9, 2354875), (15, 1412925), (25, 847755), (45, 470975), (75, 282585), (125, 169551), (225, 94195), (375, 56517), (1125, 18839)]