20137228

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:933

約数の個数: 24

約数和(自身を含む): 36578304

約数和(自身を除く): 16441076

約数列:

[1, 2, 4, 31, 62, 124, 251, 502, 647, 1004, 1294, 2588, 7781, 15562, 20057, 31124, 40114, 80228, 162397, 324794, 649588, 5034307, 10068614, 20137228]

約数ペア:

[(1, 20137228), (2, 10068614), (4, 5034307), (31, 649588), (62, 324794), (124, 162397), (251, 80228), (502, 40114), (647, 31124), (1004, 20057), (1294, 15562), (2588, 7781)]