81781049

素因数分解:

$7^2\times {\mathrm{181}}^1\times {\mathrm{9221}}^1$

素因数の和:9416

約数の個数: 12

約数和(自身を含む): 95669028

約数和(自身を除く): 13887979

約数列:

[1, 7, 49, 181, 1267, 8869, 9221, 64547, 451829, 1669001, 11683007, 81781049]

約数ペア:

[(1, 81781049), (7, 11683007), (49, 1669001), (181, 451829), (1267, 64547), (8869, 9221)]