31393999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 40449024

約数和(自身を除く): 9055025

約数列:

[1, 7, 13, 43, 71, 91, 113, 301, 497, 559, 791, 923, 1469, 3053, 3913, 4859, 6461, 8023, 10283, 21371, 34013, 39689, 56161, 63167, 104299, 277823, 344989, 442169, 730093, 2414923, 4484857, 31393999]

約数ペア:

[(1, 31393999), (7, 4484857), (13, 2414923), (43, 730093), (71, 442169), (91, 344989), (113, 277823), (301, 104299), (497, 63167), (559, 56161), (791, 39689), (923, 34013), (1469, 21371), (3053, 10283), (3913, 8023), (4859, 6461)]