21604999

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 23900800

約数和(自身を除く): 2295801

約数列:

[1, 13, 79, 109, 193, 1027, 1417, 2509, 8611, 15247, 21037, 111943, 198211, 273481, 1661923, 21604999]

約数ペア:

[(1, 21604999), (13, 1661923), (79, 273481), (109, 198211), (193, 111943), (1027, 21037), (1417, 15247), (2509, 8611)]