81891799

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1871}}^1$

素因数の和:2078

約数の個数: 16

約数和(自身を含む): 93809664

約数和(自身を除く): 11917865

約数列:

[1, 11, 23, 173, 253, 1871, 1903, 3979, 20581, 43033, 43769, 323683, 473363, 3560513, 7444709, 81891799]

約数ペア:

[(1, 81891799), (11, 7444709), (23, 3560513), (173, 473363), (253, 323683), (1871, 43769), (1903, 43033), (3979, 20581)]