68721909

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{7669}}^1$

素因数の和:7804

約数の個数: 16

約数和(自身を含む): 95721600

約数和(自身を除く): 26999691

約数列:

[1, 3, 29, 87, 103, 309, 2987, 7669, 8961, 23007, 222401, 667203, 789907, 2369721, 22907303, 68721909]

約数ペア:

[(1, 68721909), (3, 22907303), (29, 2369721), (87, 789907), (103, 667203), (309, 222401), (2987, 23007), (7669, 8961)]