21780453645

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:631

約数の個数: 96

約数和(自身を含む): 38825459712

約数和(自身を除く): 17045006067

約数列:

[1, 3, 5, 9, 15, 45, 103, 127, 163, 227, 309, 381, 489, 515, 635, 681, 815, 927, 1135, 1143, 1467, 1545, 1905, 2043, 2445, 3405, 4635, 5715, 7335, 10215, 13081, 16789, 20701, 23381, 28829, 37001, 39243, 50367, 62103, 65405, 70143, 83945, 86487, 103505, 111003, 116905, 117729, 144145, 151101, 185005, 186309, 196215, 210429, 251835, 259461, 310515, 333009, 350715, 432435, 555015, 588645, 755505, 931545, 1052145, 1297305, 1665045, 2132203, 2969387, 3811103, 4699127, 6396609, 8908161, 10661015, 11433309, 14097381, 14846935, 19055515, 19189827, 23495635, 26724483, 31983045, 34299927, 42292143, 44540805, 57166545, 70486905, 95949135, 133622415, 171499635, 211460715, 484010081, 1452030243, 2420050405, 4356090729, 7260151215, 21780453645]

約数ペア:

[(1, 21780453645), (3, 7260151215), (5, 4356090729), (9, 2420050405), (15, 1452030243), (45, 484010081), (103, 211460715), (127, 171499635), (163, 133622415), (227, 95949135), (309, 70486905), (381, 57166545), (489, 44540805), (515, 42292143), (635, 34299927), (681, 31983045), (815, 26724483), (927, 23495635), (1135, 19189827), (1143, 19055515), (1467, 14846935), (1545, 14097381), (1905, 11433309), (2043, 10661015), (2445, 8908161), (3405, 6396609), (4635, 4699127), (5715, 3811103), (7335, 2969387), (10215, 2132203), (13081, 1665045), (16789, 1297305), (20701, 1052145), (23381, 931545), (28829, 755505), (37001, 588645), (39243, 555015), (50367, 432435), (62103, 350715), (65405, 333009), (70143, 310515), (83945, 259461), (86487, 251835), (103505, 210429), (111003, 196215), (116905, 186309), (117729, 185005), (144145, 151101)]