81841054

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{1997}}^1$

素因数の和:2691

約数の個数: 16

約数和(自身を含む): 126976896

約数和(自身を除く): 45135842

約数列:

[1, 2, 31, 62, 661, 1322, 1997, 3994, 20491, 40982, 61907, 123814, 1320017, 2640034, 40920527, 81841054]

約数ペア:

[(1, 81841054), (2, 40920527), (31, 2640034), (62, 1320017), (661, 123814), (1322, 61907), (1997, 40982), (3994, 20491)]