19954389

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3847}}^1$

素因数の和:3889

約数の個数: 32

約数和(自身を含む): 34478080

約数和(自身を除く): 14523691

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3847, 5187, 11541, 26929, 50011, 73093, 80787, 150033, 219279, 350077, 511651, 950209, 1050231, 1534953, 2850627, 6651463, 19954389]

約数ペア:

[(1, 19954389), (3, 6651463), (7, 2850627), (13, 1534953), (19, 1050231), (21, 950209), (39, 511651), (57, 350077), (91, 219279), (133, 150033), (247, 80787), (273, 73093), (399, 50011), (741, 26929), (1729, 11541), (3847, 5187)]