12639289

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 14264320

約数和(自身を除く): 1625031

約数列:

[1, 13, 31, 79, 397, 403, 1027, 2449, 5161, 12307, 31363, 31837, 159991, 407719, 972253, 12639289]

約数ペア:

[(1, 12639289), (13, 972253), (31, 407719), (79, 159991), (397, 31837), (403, 31363), (1027, 12307), (2449, 5161)]