68808987

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 115906560

約数和(自身を除く): 47097573

約数列:

[1, 3, 9, 13, 27, 39, 43, 47, 97, 117, 129, 141, 291, 351, 387, 423, 559, 611, 873, 1161, 1261, 1269, 1677, 1833, 2021, 2619, 3783, 4171, 4559, 5031, 5499, 6063, 11349, 12513, 13677, 15093, 16497, 18189, 26273, 34047, 37539, 41031, 54223, 54567, 59267, 78819, 112617, 123093, 162669, 177801, 196037, 236457, 488007, 533403, 588111, 709371, 1464021, 1600209, 1764333, 2548481, 5292999, 7645443, 22936329, 68808987]

約数ペア:

[(1, 68808987), (3, 22936329), (9, 7645443), (13, 5292999), (27, 2548481), (39, 1764333), (43, 1600209), (47, 1464021), (97, 709371), (117, 588111), (129, 533403), (141, 488007), (291, 236457), (351, 196037), (387, 177801), (423, 162669), (559, 123093), (611, 112617), (873, 78819), (1161, 59267), (1261, 54567), (1269, 54223), (1677, 41031), (1833, 37539), (2021, 34047), (2619, 26273), (3783, 18189), (4171, 16497), (4559, 15093), (5031, 13677), (5499, 12513), (6063, 11349)]