21662575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2129}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 30109680

約数和(自身を除く): 8447105

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 407, 925, 2035, 2129, 10175, 10645, 23419, 53225, 78773, 117095, 393865, 585475, 866503, 1969325, 4332515, 21662575]

約数ペア:

[(1, 21662575), (5, 4332515), (11, 1969325), (25, 866503), (37, 585475), (55, 393865), (185, 117095), (275, 78773), (407, 53225), (925, 23419), (2035, 10645), (2129, 10175)]