2991395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 3954528

約数和(自身を除く): 963133

約数列:

[1, 5, 11, 55, 137, 397, 685, 1507, 1985, 4367, 7535, 21835, 54389, 271945, 598279, 2991395]

約数ペア:

[(1, 2991395), (5, 598279), (11, 271945), (55, 54389), (137, 21835), (397, 7535), (685, 4367), (1507, 1985)]