19999336

素因数分解:

$2^3\times 7^1\times {\mathrm{357131}}^1$

素因数の和:357144

約数の個数: 16

約数和(自身を含む): 42855840

約数和(自身を除く): 22856504

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 357131, 714262, 1428524, 2499917, 2857048, 4999834, 9999668, 19999336]

約数ペア:

[(1, 19999336), (2, 9999668), (4, 4999834), (7, 2857048), (8, 2499917), (14, 1428524), (28, 714262), (56, 357131)]