20866575

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{4561}}^1$

素因数の和:4635

約数の個数: 24

約数和(自身を含む): 35072656

約数和(自身を除く): 14206081

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 915, 1525, 4561, 4575, 13683, 22805, 68415, 114025, 278221, 342075, 834663, 1391105, 4173315, 6955525, 20866575]

約数ペア:

[(1, 20866575), (3, 6955525), (5, 4173315), (15, 1391105), (25, 834663), (61, 342075), (75, 278221), (183, 114025), (305, 68415), (915, 22805), (1525, 13683), (4561, 4575)]