19998376

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{31643}}^1$

素因数の和:31728

約数の個数: 16

約数和(自身を含む): 37972800

約数和(自身を除く): 17974424

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 31643, 63286, 126572, 253144, 2499797, 4999594, 9999188, 19998376]

約数ペア:

[(1, 19998376), (2, 9999188), (4, 4999594), (8, 2499797), (79, 253144), (158, 126572), (316, 63286), (632, 31643)]