20691112

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198953}}^1$

素因数の和:198972

約数の個数: 16

約数和(自身を含む): 41780340

約数和(自身を除く): 21089228

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198953, 397906, 795812, 1591624, 2586389, 5172778, 10345556, 20691112]

約数ペア:

[(1, 20691112), (2, 10345556), (4, 5172778), (8, 2586389), (13, 1591624), (26, 795812), (52, 397906), (104, 198953)]