18920837

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 21047040

約数和(自身を除く): 2126203

約数列:

[1, 13, 47, 173, 179, 611, 2249, 2327, 8131, 8413, 30967, 105703, 109369, 402571, 1455449, 18920837]

約数ペア:

[(1, 18920837), (13, 1455449), (47, 402571), (173, 109369), (179, 105703), (611, 30967), (2249, 8413), (2327, 8131)]