81357658

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{45553}}^1$

素因数の和:45621

約数の個数: 16

約数和(自身を含む): 131195520

約数和(自身を除く): 49837862

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 45553, 91106, 865507, 1731014, 2140991, 4281982, 40678829, 81357658]

約数ペア:

[(1, 81357658), (2, 40678829), (19, 4281982), (38, 2140991), (47, 1731014), (94, 865507), (893, 91106), (1786, 45553)]