128972431

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{25841}}^1$

素因数の和:25902

約数の個数: 16

約数和(自身を含む): 158773248

約数和(自身を除く): 29800817

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 25841, 180887, 594343, 801071, 4160401, 5607497, 18424633, 128972431]

約数ペア:

[(1, 128972431), (7, 18424633), (23, 5607497), (31, 4160401), (161, 801071), (217, 594343), (713, 180887), (4991, 25841)]