20215172

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 36634584

約数和(自身を除く): 16419412

約数列:

[1, 2, 4, 37, 74, 137, 148, 274, 548, 997, 1994, 3988, 5069, 10138, 20276, 36889, 73778, 136589, 147556, 273178, 546356, 5053793, 10107586, 20215172]

約数ペア:

[(1, 20215172), (2, 10107586), (4, 5053793), (37, 546356), (74, 273178), (137, 147556), (148, 136589), (274, 73778), (548, 36889), (997, 20276), (1994, 10138), (3988, 5069)]