20970375

素因数分解:

$3^1\times 5^3\times {\mathrm{55921}}^1$

素因数の和:55939

約数の個数: 16

約数和(自身を含む): 34895328

約数和(自身を除く): 13924953

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 55921, 167763, 279605, 838815, 1398025, 4194075, 6990125, 20970375]

約数ペア:

[(1, 20970375), (3, 6990125), (5, 4194075), (15, 1398025), (25, 838815), (75, 279605), (125, 167763), (375, 55921)]