28575729

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 55770624

約数和(自身を除く): 27194895

約数列:

[1, 3, 7, 9, 13, 21, 23, 37, 39, 41, 63, 69, 91, 111, 117, 123, 161, 207, 259, 273, 287, 299, 333, 369, 481, 483, 533, 777, 819, 851, 861, 897, 943, 1443, 1449, 1517, 1599, 2093, 2331, 2553, 2583, 2691, 2829, 3367, 3731, 4329, 4551, 4797, 5957, 6279, 6601, 7659, 8487, 10101, 10619, 11063, 11193, 12259, 13653, 17871, 18837, 19721, 19803, 30303, 31857, 33189, 33579, 34891, 36777, 53613, 59163, 59409, 77441, 85813, 95571, 99567, 104673, 110331, 138047, 177489, 232323, 244237, 257439, 314019, 414141, 453583, 696969, 732711, 772317, 1242423, 1360749, 2198133, 3175081, 4082247, 9525243, 28575729]

約数ペア:

[(1, 28575729), (3, 9525243), (7, 4082247), (9, 3175081), (13, 2198133), (21, 1360749), (23, 1242423), (37, 772317), (39, 732711), (41, 696969), (63, 453583), (69, 414141), (91, 314019), (111, 257439), (117, 244237), (123, 232323), (161, 177489), (207, 138047), (259, 110331), (273, 104673), (287, 99567), (299, 95571), (333, 85813), (369, 77441), (481, 59409), (483, 59163), (533, 53613), (777, 36777), (819, 34891), (851, 33579), (861, 33189), (897, 31857), (943, 30303), (1443, 19803), (1449, 19721), (1517, 18837), (1599, 17871), (2093, 13653), (2331, 12259), (2553, 11193), (2583, 11063), (2691, 10619), (2829, 10101), (3367, 8487), (3731, 7659), (4329, 6601), (4551, 6279), (4797, 5957)]