20395228

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{11941}}^1$

素因数の和:12013

約数の個数: 24

約数和(自身を含む): 41462624

約数和(自身を除く): 21067396

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 11941, 23882, 47764, 83587, 167174, 334348, 728401, 1456802, 2913604, 5098807, 10197614, 20395228]

約数ペア:

[(1, 20395228), (2, 10197614), (4, 5098807), (7, 2913604), (14, 1456802), (28, 728401), (61, 334348), (122, 167174), (244, 83587), (427, 47764), (854, 23882), (1708, 11941)]