21643427

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2306653

約数列:

[1, 13, 71, 131, 179, 923, 1703, 2327, 9301, 12709, 23449, 120913, 165217, 304837, 1664879, 21643427]

約数ペア:

[(1, 21643427), (13, 1664879), (71, 304837), (131, 165217), (179, 120913), (923, 23449), (1703, 12709), (2327, 9301)]