19879641

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5297}}^1$

素因数の和:5445

約数の個数: 16

約数和(自身を含む): 29668800

約数和(自身を除く): 9789159

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5297, 15891, 47673, 143019, 736283, 2208849, 6626547, 19879641]

約数ペア:

[(1, 19879641), (3, 6626547), (9, 2208849), (27, 736283), (139, 143019), (417, 47673), (1251, 15891), (3753, 5297)]