19995178

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{13103}}^1$

素因数の和:13221

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 14599382

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 13103, 26206, 91721, 183442, 1428227, 2856454, 9997589, 19995178]

約数ペア:

[(1, 19995178), (2, 9997589), (7, 2856454), (14, 1428227), (109, 183442), (218, 91721), (763, 26206), (1526, 13103)]