646874343

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1787}}^1$

素因数の和:1949

約数の個数: 40

約数和(自身を含む): 999527760

約数和(自身を除く): 352653417

約数列:

[1, 3, 9, 27, 41, 81, 109, 123, 327, 369, 981, 1107, 1787, 2943, 3321, 4469, 5361, 8829, 13407, 16083, 40221, 48249, 73267, 120663, 144747, 194783, 219801, 361989, 584349, 659403, 1753047, 1978209, 5259141, 5934627, 7986103, 15777423, 23958309, 71874927, 215624781, 646874343]

約数ペア:

[(1, 646874343), (3, 215624781), (9, 71874927), (27, 23958309), (41, 15777423), (81, 7986103), (109, 5934627), (123, 5259141), (327, 1978209), (369, 1753047), (981, 659403), (1107, 584349), (1787, 361989), (2943, 219801), (3321, 194783), (4469, 144747), (5361, 120663), (8829, 73267), (13407, 48249), (16083, 40221)]