18640363

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{607}}^1$

素因数の和:762

約数の個数: 16

約数和(自身を含む): 22063104

約数和(自身を除く): 3422741

約数列:

[1, 7, 41, 107, 287, 607, 749, 4249, 4387, 24887, 30709, 64949, 174209, 454643, 2662909, 18640363]

約数ペア:

[(1, 18640363), (7, 2662909), (41, 454643), (107, 174209), (287, 64949), (607, 30709), (749, 24887), (4249, 4387)]