17980967529

素因数分解:

$3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{463}}^1\times {\mathrm{1061}}^1$

素因数の和:1627

約数の個数: 72

約数和(自身を含む): 30671851392

約数和(自身を除く): 12690883863

約数列:

[1, 3, 7, 9, 21, 49, 63, 83, 147, 249, 441, 463, 581, 747, 1061, 1389, 1743, 3183, 3241, 4067, 4167, 5229, 7427, 9549, 9723, 12201, 22281, 22687, 29169, 36603, 38429, 51989, 66843, 68061, 88063, 115287, 155967, 204183, 264189, 269003, 345861, 467901, 491243, 616441, 792567, 807009, 1473729, 1849323, 1883021, 2421027, 3438701, 4315087, 4421187, 5547969, 5649063, 10316103, 12945261, 16947189, 24070907, 30948309, 38835783, 40773169, 72212721, 122319507, 216638163, 285412183, 366958521, 856236549, 1997885281, 2568709647, 5993655843, 17980967529]

約数ペア:

[(1, 17980967529), (3, 5993655843), (7, 2568709647), (9, 1997885281), (21, 856236549), (49, 366958521), (63, 285412183), (83, 216638163), (147, 122319507), (249, 72212721), (441, 40773169), (463, 38835783), (581, 30948309), (747, 24070907), (1061, 16947189), (1389, 12945261), (1743, 10316103), (3183, 5649063), (3241, 5547969), (4067, 4421187), (4167, 4315087), (5229, 3438701), (7427, 2421027), (9549, 1883021), (9723, 1849323), (12201, 1473729), (22281, 807009), (22687, 792567), (29169, 616441), (36603, 491243), (38429, 467901), (51989, 345861), (66843, 269003), (68061, 264189), (88063, 204183), (115287, 155967)]