21043236478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{2423}}^1$

素因数の和:2797

約数の個数: 64

約数和(自身を含む): 36860313600

約数和(自身を除く): 15817077122

約数列:

[1, 2, 11, 19, 22, 38, 79, 158, 209, 263, 418, 526, 869, 1501, 1738, 2423, 2893, 3002, 4846, 4997, 5786, 9994, 16511, 20777, 26653, 33022, 41554, 46037, 53306, 54967, 92074, 109934, 191417, 228547, 382834, 394763, 457094, 506407, 637249, 789526, 1012814, 1274498, 2105587, 3636923, 4211174, 4342393, 7009739, 7273846, 8684786, 12107731, 14019478, 24215462, 40006153, 50342671, 80012306, 100685342, 133185041, 266370082, 553769381, 956510749, 1107538762, 1913021498, 10521618239, 21043236478]

約数ペア:

[(1, 21043236478), (2, 10521618239), (11, 1913021498), (19, 1107538762), (22, 956510749), (38, 553769381), (79, 266370082), (158, 133185041), (209, 100685342), (263, 80012306), (418, 50342671), (526, 40006153), (869, 24215462), (1501, 14019478), (1738, 12107731), (2423, 8684786), (2893, 7273846), (3002, 7009739), (4846, 4342393), (4997, 4211174), (5786, 3636923), (9994, 2105587), (16511, 1274498), (20777, 1012814), (26653, 789526), (33022, 637249), (41554, 506407), (46037, 457094), (53306, 394763), (54967, 382834), (92074, 228547), (109934, 191417)]