12721778

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{521}}^1$

素因数の和:973

約数の個数: 16

約数和(自身を含む): 19825560

約数和(自身を除く): 7103782

約数列:

[1, 2, 29, 58, 421, 521, 842, 1042, 12209, 15109, 24418, 30218, 219341, 438682, 6360889, 12721778]

約数ペア:

[(1, 12721778), (2, 6360889), (29, 438682), (58, 219341), (421, 30218), (521, 24418), (842, 15109), (1042, 12209)]