721298487651

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{63311}}^1$

素因数の和:63489

約数の個数: 96

約数和(自身を含む): 1222251835392

約数和(自身を除く): 500953347741

約数列:

[1, 3, 7, 17, 21, 47, 49, 51, 97, 119, 141, 147, 291, 329, 357, 679, 799, 833, 987, 1649, 2037, 2303, 2397, 2499, 4559, 4753, 4947, 5593, 6909, 11543, 13677, 14259, 16779, 31913, 34629, 39151, 63311, 77503, 80801, 95739, 117453, 189933, 223391, 232509, 242403, 443177, 542521, 670173, 1076287, 1329531, 1627563, 2975617, 3102239, 3228861, 3797647, 6141167, 7534009, 8926851, 9306717, 11392941, 18423501, 20829319, 22602027, 42988169, 50585489, 52738063, 62487957, 104399839, 128964507, 145805233, 151756467, 158214189, 288634849, 300917183, 313199517, 354098423, 437415699, 730798873, 865904547, 902751549, 1062295269, 2020443943, 2192396619, 2478688961, 4906792433, 5115592111, 6061331829, 7436066883, 14143107601, 14720377299, 15346776333, 34347547031, 42429322803, 103042641093, 240432829217, 721298487651]

約数ペア:

[(1, 721298487651), (3, 240432829217), (7, 103042641093), (17, 42429322803), (21, 34347547031), (47, 15346776333), (49, 14720377299), (51, 14143107601), (97, 7436066883), (119, 6061331829), (141, 5115592111), (147, 4906792433), (291, 2478688961), (329, 2192396619), (357, 2020443943), (679, 1062295269), (799, 902751549), (833, 865904547), (987, 730798873), (1649, 437415699), (2037, 354098423), (2303, 313199517), (2397, 300917183), (2499, 288634849), (4559, 158214189), (4753, 151756467), (4947, 145805233), (5593, 128964507), (6909, 104399839), (11543, 62487957), (13677, 52738063), (14259, 50585489), (16779, 42988169), (31913, 22602027), (34629, 20829319), (39151, 18423501), (63311, 11392941), (77503, 9306717), (80801, 8926851), (95739, 7534009), (117453, 6141167), (189933, 3797647), (223391, 3228861), (232509, 3102239), (242403, 2975617), (443177, 1627563), (542521, 1329531), (670173, 1076287)]