20996075

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 26998272

約数和(自身を除く): 6002197

約数列:

[1, 5, 25, 47, 107, 167, 235, 535, 835, 1175, 2675, 4175, 5029, 7849, 17869, 25145, 39245, 89345, 125725, 196225, 446725, 839843, 4199215, 20996075]

約数ペア:

[(1, 20996075), (5, 4199215), (25, 839843), (47, 446725), (107, 196225), (167, 125725), (235, 89345), (535, 39245), (835, 25145), (1175, 17869), (2675, 7849), (4175, 5029)]