21054886

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{1429}}^1$

素因数の和:1623

約数の個数: 16

約数和(自身を含む): 32432400

約数和(自身を除く): 11377514

約数列:

[1, 2, 53, 106, 139, 278, 1429, 2858, 7367, 14734, 75737, 151474, 198631, 397262, 10527443, 21054886]

約数ペア:

[(1, 21054886), (2, 10527443), (53, 397262), (106, 198631), (139, 151474), (278, 75737), (1429, 14734), (2858, 7367)]