217775558

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 128

約数和(自身を含む): 472227840

約数和(自身を除く): 254452282

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 29, 31, 58, 62, 77, 91, 121, 143, 154, 182, 203, 217, 242, 286, 319, 341, 377, 403, 406, 434, 638, 682, 754, 806, 847, 899, 1001, 1331, 1573, 1694, 1798, 2002, 2233, 2387, 2639, 2662, 2821, 3146, 3509, 3751, 4147, 4433, 4466, 4774, 5278, 5642, 6293, 7018, 7502, 8294, 8866, 9317, 9889, 11011, 11687, 12586, 17303, 18634, 19778, 22022, 23374, 24563, 26257, 29029, 31031, 34606, 38599, 41261, 45617, 48763, 49126, 52514, 58058, 62062, 69223, 77198, 81809, 82522, 91234, 97526, 108779, 121121, 128557, 138446, 163618, 217558, 242242, 257114, 270193, 288827, 319319, 341341, 501787, 536393, 540386, 577654, 638638, 682682, 761453, 899899, 1003574, 1072786, 1196569, 1414127, 1522906, 1799798, 2393138, 2828254, 3512509, 3754751, 7025018, 7509502, 8375983, 9898889, 15555397, 16751966, 19797778, 31110794, 108887779, 217775558]

約数ペア:

[(1, 217775558), (2, 108887779), (7, 31110794), (11, 19797778), (13, 16751966), (14, 15555397), (22, 9898889), (26, 8375983), (29, 7509502), (31, 7025018), (58, 3754751), (62, 3512509), (77, 2828254), (91, 2393138), (121, 1799798), (143, 1522906), (154, 1414127), (182, 1196569), (203, 1072786), (217, 1003574), (242, 899899), (286, 761453), (319, 682682), (341, 638638), (377, 577654), (403, 540386), (406, 536393), (434, 501787), (638, 341341), (682, 319319), (754, 288827), (806, 270193), (847, 257114), (899, 242242), (1001, 217558), (1331, 163618), (1573, 138446), (1694, 128557), (1798, 121121), (2002, 108779), (2233, 97526), (2387, 91234), (2639, 82522), (2662, 81809), (2821, 77198), (3146, 69223), (3509, 62062), (3751, 58058), (4147, 52514), (4433, 49126), (4466, 48763), (4774, 45617), (5278, 41261), (5642, 38599), (6293, 34606), (7018, 31031), (7502, 29029), (8294, 26257), (8866, 24563), (9317, 23374), (9889, 22022), (11011, 19778), (11687, 18634), (12586, 17303)]