12939575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 17665536

約数和(自身を除く): 4725961

約数列:

[1, 5, 11, 25, 55, 211, 223, 275, 1055, 1115, 2321, 2453, 5275, 5575, 11605, 12265, 47053, 58025, 61325, 235265, 517583, 1176325, 2587915, 12939575]

約数ペア:

[(1, 12939575), (5, 2587915), (11, 1176325), (25, 517583), (55, 235265), (211, 61325), (223, 58025), (275, 47053), (1055, 12265), (1115, 11605), (2321, 5575), (2453, 5275)]