21713575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{941}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 29435616

約数和(自身を除く): 7722041

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 941, 1775, 4615, 4705, 12233, 23075, 23525, 61165, 66811, 305825, 334055, 868543, 1670275, 4342715, 21713575]

約数ペア:

[(1, 21713575), (5, 4342715), (13, 1670275), (25, 868543), (65, 334055), (71, 305825), (325, 66811), (355, 61165), (923, 23525), (941, 23075), (1775, 12233), (4615, 4705)]