21992212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1259}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 42124320

約数和(自身を除く): 20132108

約数列:

[1, 2, 4, 11, 22, 44, 397, 794, 1259, 1588, 2518, 4367, 5036, 8734, 13849, 17468, 27698, 55396, 499823, 999646, 1999292, 5498053, 10996106, 21992212]

約数ペア:

[(1, 21992212), (2, 10996106), (4, 5498053), (11, 1999292), (22, 999646), (44, 499823), (397, 55396), (794, 27698), (1259, 17468), (1588, 13849), (2518, 8734), (4367, 5036)]