131828571

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 237523104

約数和(自身を除く): 105694533

約数列:

[1, 3, 7, 9, 21, 23, 41, 49, 63, 69, 123, 147, 161, 207, 287, 317, 369, 441, 483, 861, 943, 951, 1127, 1449, 2009, 2219, 2583, 2829, 2853, 3381, 6027, 6601, 6657, 7291, 8487, 10143, 12997, 15533, 18081, 19803, 19971, 21873, 38991, 46207, 46599, 51037, 59409, 65619, 90979, 116973, 138621, 139797, 153111, 272937, 298931, 357259, 415863, 459333, 636853, 818811, 896793, 1071777, 1910559, 2092517, 2690379, 3215331, 5731677, 6277551, 14647619, 18832653, 43942857, 131828571]

約数ペア:

[(1, 131828571), (3, 43942857), (7, 18832653), (9, 14647619), (21, 6277551), (23, 5731677), (41, 3215331), (49, 2690379), (63, 2092517), (69, 1910559), (123, 1071777), (147, 896793), (161, 818811), (207, 636853), (287, 459333), (317, 415863), (369, 357259), (441, 298931), (483, 272937), (861, 153111), (943, 139797), (951, 138621), (1127, 116973), (1449, 90979), (2009, 65619), (2219, 59409), (2583, 51037), (2829, 46599), (2853, 46207), (3381, 38991), (6027, 21873), (6601, 19971), (6657, 19803), (7291, 18081), (8487, 15533), (10143, 12997)]