1638416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{7877}}^1$

素因数の和:7898

約数の個数: 20

約数和(自身を含む): 3419052

約数和(自身を除く): 1780636

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 7877, 15754, 31508, 63016, 102401, 126032, 204802, 409604, 819208, 1638416]

約数ペア:

[(1, 1638416), (2, 819208), (4, 409604), (8, 204802), (13, 126032), (16, 102401), (26, 63016), (52, 31508), (104, 15754), (208, 7877)]