21316479

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2753}}^1$

素因数の和:2874

約数の個数: 16

約数和(自身を含む): 29743200

約数和(自身を除く): 8426721

約数列:

[1, 3, 29, 87, 89, 267, 2581, 2753, 7743, 8259, 79837, 239511, 245017, 735051, 7105493, 21316479]

約数ペア:

[(1, 21316479), (3, 7105493), (29, 735051), (87, 245017), (89, 239511), (267, 79837), (2581, 8259), (2753, 7743)]