21217262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 36875520

約数和(自身を除く): 15658258

約数列:

[1, 2, 11, 19, 22, 38, 193, 209, 263, 386, 418, 526, 2123, 2893, 3667, 4246, 4997, 5786, 7334, 9994, 40337, 50759, 54967, 80674, 101518, 109934, 558349, 964421, 1116698, 1928842, 10608631, 21217262]

約数ペア:

[(1, 21217262), (2, 10608631), (11, 1928842), (19, 1116698), (22, 964421), (38, 558349), (193, 109934), (209, 101518), (263, 80674), (386, 54967), (418, 50759), (526, 40337), (2123, 9994), (2893, 7334), (3667, 5786), (4246, 4997)]