19889909

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 22014720

約数和(自身を除く): 2124811

約数列:

[1, 13, 79, 107, 181, 1027, 1391, 2353, 8453, 14299, 19367, 109889, 185887, 251771, 1529993, 19889909]

約数ペア:

[(1, 19889909), (13, 1529993), (79, 251771), (107, 185887), (181, 109889), (1027, 19367), (1391, 14299), (2353, 8453)]