16861865

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{991}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 20998656

約数和(自身を除く): 4136791

約数列:

[1, 5, 41, 83, 205, 415, 991, 3403, 4955, 17015, 40631, 82253, 203155, 411265, 3372373, 16861865]

約数ペア:

[(1, 16861865), (5, 3372373), (41, 411265), (83, 203155), (205, 82253), (415, 40631), (991, 17015), (3403, 4955)]