21682925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2131}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 30137952

約数和(自身を除く): 8455027

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 407, 925, 2035, 2131, 10175, 10655, 23441, 53275, 78847, 117205, 394235, 586025, 867317, 1971175, 4336585, 21682925]

約数ペア:

[(1, 21682925), (5, 4336585), (11, 1971175), (25, 867317), (37, 586025), (55, 394235), (185, 117205), (275, 78847), (407, 53275), (925, 23441), (2035, 10655), (2131, 10175)]