21666347

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:382

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 2011573

約数列:

[1, 17, 53, 139, 173, 901, 2363, 2941, 7367, 9169, 24047, 125239, 155873, 408799, 1274491, 21666347]

約数ペア:

[(1, 21666347), (17, 1274491), (53, 408799), (139, 155873), (173, 125239), (901, 24047), (2363, 9169), (2941, 7367)]