208457907

素因数分解:

$3^1\times 7^3\times {\mathrm{173}}^1\times {\mathrm{1171}}^1$

素因数の和:1368

約数の個数: 32

約数和(自身を含む): 326284800

約数和(自身を除く): 117826893

約数列:

[1, 3, 7, 21, 49, 147, 173, 343, 519, 1029, 1171, 1211, 3513, 3633, 8197, 8477, 24591, 25431, 57379, 59339, 172137, 178017, 202583, 401653, 607749, 1204959, 1418081, 4254243, 9926567, 29779701, 69485969, 208457907]

約数ペア:

[(1, 208457907), (3, 69485969), (7, 29779701), (21, 9926567), (49, 4254243), (147, 1418081), (173, 1204959), (343, 607749), (519, 401653), (1029, 202583), (1171, 178017), (1211, 172137), (3513, 59339), (3633, 57379), (8197, 25431), (8477, 24591)]