81239207

素因数分解:

$7^3\times {\mathrm{239}}^1\times {\mathrm{991}}^1$

素因数の和:1251

約数の個数: 16

約数和(自身を含む): 95232000

約数和(自身を除く): 13992793

約数列:

[1, 7, 49, 239, 343, 991, 1673, 6937, 11711, 48559, 81977, 236849, 339913, 1657943, 11605601, 81239207]

約数ペア:

[(1, 81239207), (7, 11605601), (49, 1657943), (239, 339913), (343, 236849), (991, 81977), (1673, 48559), (6937, 11711)]