291951207

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 464162400

約数和(自身を除く): 172211193

約数列:

[1, 3, 9, 19, 29, 57, 87, 113, 171, 261, 339, 521, 551, 1017, 1563, 1653, 2147, 3277, 4689, 4959, 6441, 9831, 9899, 15109, 19323, 29493, 29697, 45327, 58873, 62263, 89091, 135981, 176619, 186789, 287071, 529857, 560367, 861213, 1118587, 1707317, 2583639, 3355761, 5121951, 10067283, 15365853, 32439023, 97317069, 291951207]

約数ペア:

[(1, 291951207), (3, 97317069), (9, 32439023), (19, 15365853), (29, 10067283), (57, 5121951), (87, 3355761), (113, 2583639), (171, 1707317), (261, 1118587), (339, 861213), (521, 560367), (551, 529857), (1017, 287071), (1563, 186789), (1653, 176619), (2147, 135981), (3277, 89091), (4689, 62263), (4959, 58873), (6441, 45327), (9831, 29697), (9899, 29493), (15109, 19323)]