217490643

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{1103}}^1$

素因数の和:1288

約数の個数: 32

約数和(自身を含む): 330316800

約数和(自身を除く): 112826157

約数列:

[1, 3, 9, 27, 67, 109, 201, 327, 603, 981, 1103, 1809, 2943, 3309, 7303, 9927, 21909, 29781, 65727, 73901, 120227, 197181, 221703, 360681, 665109, 1082043, 1995327, 3246129, 8055209, 24165627, 72496881, 217490643]

約数ペア:

[(1, 217490643), (3, 72496881), (9, 24165627), (27, 8055209), (67, 3246129), (109, 1995327), (201, 1082043), (327, 665109), (603, 360681), (981, 221703), (1103, 197181), (1809, 120227), (2943, 73901), (3309, 65727), (7303, 29781), (9927, 21909)]