81917143

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{2221}}^1$

素因数の和:2718

約数の個数: 16

約数和(自身を含む): 102389760

約数和(自身を除く): 20472617

約数列:

[1, 7, 11, 77, 479, 2221, 3353, 5269, 15547, 24431, 36883, 171017, 1063859, 7447013, 11702449, 81917143]

約数ペア:

[(1, 81917143), (7, 11702449), (11, 7447013), (77, 1063859), (479, 171017), (2221, 36883), (3353, 24431), (5269, 15547)]