21193625

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{3943}}^1$

素因数の和:4001

約数の個数: 16

約数和(自身を含む): 27071616

約数和(自身を除く): 5877991

約数列:

[1, 5, 25, 43, 125, 215, 1075, 3943, 5375, 19715, 98575, 169549, 492875, 847745, 4238725, 21193625]

約数ペア:

[(1, 21193625), (5, 4238725), (25, 847745), (43, 492875), (125, 169549), (215, 98575), (1075, 19715), (3943, 5375)]