81409999

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1319}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 92252160

約数和(自身を除く): 10842161

約数列:

[1, 11, 31, 181, 341, 1319, 1991, 5611, 14509, 40889, 61721, 238739, 449779, 2626129, 7400909, 81409999]

約数ペア:

[(1, 81409999), (11, 7400909), (31, 2626129), (181, 449779), (341, 238739), (1319, 61721), (1991, 40889), (5611, 14509)]