19078339

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1669}}^1$

素因数の和:1770

約数の個数: 16

約数和(自身を含む): 23086080

約数和(自身を除く): 4007741

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1669, 11431, 11683, 38387, 118499, 268709, 829493, 2725477, 19078339]

約数ペア:

[(1, 19078339), (7, 2725477), (23, 829493), (71, 268709), (161, 118499), (497, 38387), (1633, 11683), (1669, 11431)]