20172908979

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8587871}}^1$

素因数の和:8587912

約数の個数: 20

約数和(自身を含む): 31173975360

約数和(自身を除く): 11001066381

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8587871, 25763613, 77290839, 231872517, 249048259, 695617551, 747144777, 2241434331, 6724302993, 20172908979]

約数ペア:

[(1, 20172908979), (3, 6724302993), (9, 2241434331), (27, 747144777), (29, 695617551), (81, 249048259), (87, 231872517), (261, 77290839), (783, 25763613), (2349, 8587871)]