17721860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68161}}^1$

素因数の和:68183

約数の個数: 24

約数和(自身を含む): 40079256

約数和(自身を除く): 22357396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68161, 136322, 272644, 340805, 681610, 886093, 1363220, 1772186, 3544372, 4430465, 8860930, 17721860]

約数ペア:

[(1, 17721860), (2, 8860930), (4, 4430465), (5, 3544372), (10, 1772186), (13, 1363220), (20, 886093), (26, 681610), (52, 340805), (65, 272644), (130, 136322), (260, 68161)]