21517318

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{1559}}^1$

素因数の和:1731

約数の個数: 16

約数和(自身を含む): 33096960

約数和(自身を除く): 11579642

約数列:

[1, 2, 67, 103, 134, 206, 1559, 3118, 6901, 13802, 104453, 160577, 208906, 321154, 10758659, 21517318]

約数ペア:

[(1, 21517318), (2, 10758659), (67, 321154), (103, 208906), (134, 160577), (206, 104453), (1559, 13802), (3118, 6901)]