20978638

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{3331}}^1$

素因数の和:3447

約数の個数: 16

約数和(自身を含む): 32626944

約数和(自身を除く): 11648306

約数列:

[1, 2, 47, 67, 94, 134, 3149, 3331, 6298, 6662, 156557, 223177, 313114, 446354, 10489319, 20978638]

約数ペア:

[(1, 20978638), (2, 10489319), (47, 446354), (67, 313114), (94, 223177), (134, 156557), (3149, 6662), (3331, 6298)]