21140275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2243}}^1$

素因数の和:2295

約数の個数: 24

約数和(自身を含む): 29216880

約数和(自身を除く): 8076605

約数列:

[1, 5, 13, 25, 29, 65, 145, 325, 377, 725, 1885, 2243, 9425, 11215, 29159, 56075, 65047, 145795, 325235, 728975, 845611, 1626175, 4228055, 21140275]

約数ペア:

[(1, 21140275), (5, 4228055), (13, 1626175), (25, 845611), (29, 728975), (65, 325235), (145, 145795), (325, 65047), (377, 56075), (725, 29159), (1885, 11215), (2243, 9425)]