21311356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{6131}}^1$

素因数の和:6225

約数の個数: 24

約数和(自身を含む): 41207040

約数和(自身を除く): 19895684

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 6131, 12262, 24524, 67441, 134882, 269764, 484349, 968698, 1937396, 5327839, 10655678, 21311356]

約数ペア:

[(1, 21311356), (2, 10655678), (4, 5327839), (11, 1937396), (22, 968698), (44, 484349), (79, 269764), (158, 134882), (316, 67441), (869, 24524), (1738, 12262), (3476, 6131)]