81431178

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{8311}}^1$

素因数の和:8410

約数の個数: 32

約数和(自身を含む): 172357632

約数和(自身を除く): 90926454

約数列:

[1, 2, 3, 6, 23, 46, 69, 71, 138, 142, 213, 426, 1633, 3266, 4899, 8311, 9798, 16622, 24933, 49866, 191153, 382306, 573459, 590081, 1146918, 1180162, 1770243, 3540486, 13571863, 27143726, 40715589, 81431178]

約数ペア:

[(1, 81431178), (2, 40715589), (3, 27143726), (6, 13571863), (23, 3540486), (46, 1770243), (69, 1180162), (71, 1146918), (138, 590081), (142, 573459), (213, 382306), (426, 191153), (1633, 49866), (3266, 24933), (4899, 16622), (8311, 9798)]