20175431913

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{4441}}^1$

素因数の和:4556

約数の個数: 96

約数和(自身を含む): 37671002880

約数和(自身を除く): 17495570967

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 91, 117, 129, 189, 273, 301, 351, 387, 559, 819, 903, 1161, 1677, 1849, 2457, 2709, 3913, 4441, 5031, 5547, 8127, 11739, 12943, 13323, 15093, 16641, 24037, 31087, 35217, 38829, 39969, 49923, 57733, 72111, 93261, 105651, 116487, 119907, 168259, 173199, 190963, 216333, 279783, 349461, 404131, 504777, 519597, 572889, 648999, 839349, 1212393, 1336741, 1514331, 1558791, 1718667, 2482519, 3637179, 4010223, 4542993, 5156001, 7447557, 8211409, 10911537, 12030669, 17377633, 22342671, 24634227, 36092007, 52132899, 57479863, 67028013, 73902681, 106748317, 156398697, 172439589, 221708043, 320244951, 469196091, 517318767, 747238219, 960734853, 1551956301, 2241714657, 2882204559, 6725143971, 20175431913]

約数ペア:

[(1, 20175431913), (3, 6725143971), (7, 2882204559), (9, 2241714657), (13, 1551956301), (21, 960734853), (27, 747238219), (39, 517318767), (43, 469196091), (63, 320244951), (91, 221708043), (117, 172439589), (129, 156398697), (189, 106748317), (273, 73902681), (301, 67028013), (351, 57479863), (387, 52132899), (559, 36092007), (819, 24634227), (903, 22342671), (1161, 17377633), (1677, 12030669), (1849, 10911537), (2457, 8211409), (2709, 7447557), (3913, 5156001), (4441, 4542993), (5031, 4010223), (5547, 3637179), (8127, 2482519), (11739, 1718667), (12943, 1558791), (13323, 1514331), (15093, 1336741), (16641, 1212393), (24037, 839349), (31087, 648999), (35217, 572889), (38829, 519597), (39969, 504777), (49923, 404131), (57733, 349461), (72111, 279783), (93261, 216333), (105651, 190963), (116487, 173199), (119907, 168259)]