81405974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{66617}}^1$

素因数の和:66679

約数の個数: 16

約数和(自身を含む): 134301888

約数和(自身を除く): 52895914

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 66617, 133234, 866021, 1732042, 3130999, 6261998, 40702987, 81405974]

約数ペア:

[(1, 81405974), (2, 40702987), (13, 6261998), (26, 3130999), (47, 1732042), (94, 866021), (611, 133234), (1222, 66617)]