20881442

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{1151}}^1$

素因数の和:1393

約数の個数: 16

約数和(自身を含む): 32182272

約数和(自身を除く): 11300830

約数列:

[1, 2, 47, 94, 193, 386, 1151, 2302, 9071, 18142, 54097, 108194, 222143, 444286, 10440721, 20881442]

約数ペア:

[(1, 20881442), (2, 10440721), (47, 444286), (94, 222143), (193, 108194), (386, 54097), (1151, 18142), (2302, 9071)]