642760239

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{1753}}^1$

素因数の和:2079

約数の個数: 32

約数和(自身を含む): 961809408

約数和(自身を除く): 319049169

約数列:

[1, 3, 11, 33, 41, 123, 271, 451, 813, 1353, 1753, 2981, 5259, 8943, 11111, 19283, 33333, 57849, 71873, 122221, 215619, 366663, 475063, 790603, 1425189, 2371809, 5225693, 15677079, 19477583, 58432749, 214253413, 642760239]

約数ペア:

[(1, 642760239), (3, 214253413), (11, 58432749), (33, 19477583), (41, 15677079), (123, 5225693), (271, 2371809), (451, 1425189), (813, 790603), (1353, 475063), (1753, 366663), (2981, 215619), (5259, 122221), (8943, 71873), (11111, 57849), (19283, 33333)]