20215208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{194377}}^1$

素因数の和:194396

約数の個数: 16

約数和(自身を含む): 40819380

約数和(自身を除く): 20604172

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 194377, 388754, 777508, 1555016, 2526901, 5053802, 10107604, 20215208]

約数ペア:

[(1, 20215208), (2, 10107604), (4, 5053802), (8, 2526901), (13, 1555016), (26, 777508), (52, 388754), (104, 194377)]