20687588

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1237}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 37541112

約数和(自身を除く): 16853524

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1237, 2474, 4181, 4948, 8362, 16724, 45769, 91538, 139781, 183076, 279562, 559124, 5171897, 10343794, 20687588]

約数ペア:

[(1, 20687588), (2, 10343794), (4, 5171897), (37, 559124), (74, 279562), (113, 183076), (148, 139781), (226, 91538), (452, 45769), (1237, 16724), (2474, 8362), (4181, 4948)]