15980751

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 23755680

約数和(自身を除く): 7774929

約数列:

[1, 3, 9, 71, 89, 213, 267, 281, 639, 801, 843, 2529, 6319, 18957, 19951, 25009, 56871, 59853, 75027, 179559, 225081, 1775639, 5326917, 15980751]

約数ペア:

[(1, 15980751), (3, 5326917), (9, 1775639), (71, 225081), (89, 179559), (213, 75027), (267, 59853), (281, 56871), (639, 25009), (801, 19951), (843, 18957), (2529, 6319)]