20169317

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1091}}^1$

素因数の和:1256

約数の個数: 16

約数和(自身を含む): 24460800

約数和(自身を除く): 4291483

約数列:

[1, 7, 19, 133, 139, 973, 1091, 2641, 7637, 18487, 20729, 145103, 151649, 1061543, 2881331, 20169317]

約数ペア:

[(1, 20169317), (7, 2881331), (19, 1061543), (133, 151649), (139, 145103), (973, 20729), (1091, 18487), (2641, 7637)]