20813656

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{32933}}^1$

素因数の和:33018

約数の個数: 16

約数和(自身を含む): 39520800

約数和(自身を除く): 18707144

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 32933, 65866, 131732, 263464, 2601707, 5203414, 10406828, 20813656]

約数ペア:

[(1, 20813656), (2, 10406828), (4, 5203414), (8, 2601707), (79, 263464), (158, 131732), (316, 65866), (632, 32933)]