21639506

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25339}}^1$

素因数の和:25409

約数の個数: 16

約数和(自身を含む): 37705920

約数和(自身を除く): 16066414

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25339, 50678, 177373, 354746, 1545679, 3091358, 10819753, 21639506]

約数ペア:

[(1, 21639506), (2, 10819753), (7, 3091358), (14, 1545679), (61, 354746), (122, 177373), (427, 50678), (854, 25339)]