15721898031

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{2243}}^1$

素因数の和:2421

約数の個数: 96

約数和(自身を含む): 27810951168

約数和(自身を除く): 12089053137

約数列:

[1, 3, 7, 9, 21, 31, 37, 63, 93, 97, 111, 217, 259, 279, 291, 333, 651, 679, 777, 873, 1147, 1953, 2037, 2243, 2331, 3007, 3441, 3589, 6111, 6729, 8029, 9021, 10323, 10767, 15701, 20187, 21049, 24087, 25123, 27063, 32301, 47103, 63147, 69533, 72261, 75369, 82991, 111259, 141309, 189441, 208599, 217571, 226107, 248973, 333777, 486731, 580937, 625797, 652713, 746919, 778813, 1001331, 1460193, 1522997, 1742811, 1958139, 2336439, 2572721, 4380579, 4568991, 5228433, 6744701, 7009317, 7718163, 8050127, 13706973, 18009047, 20234103, 23154489, 24150381, 47212907, 54027141, 56350889, 60702309, 72451143, 141638721, 162081423, 169052667, 249553937, 424916163, 507158001, 748661811, 1746877559, 2245985433, 5240632677, 15721898031]

約数ペア:

[(1, 15721898031), (3, 5240632677), (7, 2245985433), (9, 1746877559), (21, 748661811), (31, 507158001), (37, 424916163), (63, 249553937), (93, 169052667), (97, 162081423), (111, 141638721), (217, 72451143), (259, 60702309), (279, 56350889), (291, 54027141), (333, 47212907), (651, 24150381), (679, 23154489), (777, 20234103), (873, 18009047), (1147, 13706973), (1953, 8050127), (2037, 7718163), (2243, 7009317), (2331, 6744701), (3007, 5228433), (3441, 4568991), (3589, 4380579), (6111, 2572721), (6729, 2336439), (8029, 1958139), (9021, 1742811), (10323, 1522997), (10767, 1460193), (15701, 1001331), (20187, 778813), (21049, 746919), (24087, 652713), (25123, 625797), (27063, 580937), (32301, 486731), (47103, 333777), (63147, 248973), (69533, 226107), (72261, 217571), (75369, 208599), (82991, 189441), (111259, 141309)]