647490081

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{3779}}^1$

素因数の和:4029

約数の個数: 32

約数和(自身を含む): 1016064000

約数和(自身を除く): 368573919

約数列:

[1, 3, 7, 21, 41, 123, 199, 287, 597, 861, 1393, 3779, 4179, 8159, 11337, 24477, 26453, 57113, 79359, 154939, 171339, 464817, 752021, 1084573, 2256063, 3253719, 5264147, 15792441, 30832861, 92498583, 215830027, 647490081]

約数ペア:

[(1, 647490081), (3, 215830027), (7, 92498583), (21, 30832861), (41, 15792441), (123, 5264147), (199, 3253719), (287, 2256063), (597, 1084573), (861, 752021), (1393, 464817), (3779, 171339), (4179, 154939), (8159, 79359), (11337, 57113), (24477, 26453)]