21888525

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12689}}^1$

素因数の和:12725

約数の個数: 24

約数和(自身を含む): 37765440

約数和(自身を除く): 15876915

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12689, 38067, 63445, 190335, 291847, 317225, 875541, 951675, 1459235, 4377705, 7296175, 21888525]

約数ペア:

[(1, 21888525), (3, 7296175), (5, 4377705), (15, 1459235), (23, 951675), (25, 875541), (69, 317225), (75, 291847), (115, 190335), (345, 63445), (575, 38067), (1725, 12689)]