217960666

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 432645120

約数和(自身を除く): 214684454

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 163, 209, 266, 326, 418, 457, 914, 1141, 1463, 1793, 2282, 2926, 3097, 3199, 3586, 5027, 6194, 6398, 8683, 10054, 12551, 17366, 21679, 25102, 34067, 35189, 43358, 60781, 68134, 70378, 74491, 95513, 121562, 148982, 191026, 238469, 476938, 521437, 668591, 819401, 1042874, 1337182, 1415329, 1638802, 2830658, 5735807, 9907303, 11471614, 15568619, 19814606, 31137238, 108980333, 217960666]

約数ペア:

[(1, 217960666), (2, 108980333), (7, 31137238), (11, 19814606), (14, 15568619), (19, 11471614), (22, 9907303), (38, 5735807), (77, 2830658), (133, 1638802), (154, 1415329), (163, 1337182), (209, 1042874), (266, 819401), (326, 668591), (418, 521437), (457, 476938), (914, 238469), (1141, 191026), (1463, 148982), (1793, 121562), (2282, 95513), (2926, 74491), (3097, 70378), (3199, 68134), (3586, 60781), (5027, 43358), (6194, 35189), (6398, 34067), (8683, 25102), (10054, 21679), (12551, 17366)]