20794778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8971}}^1$

素因数の和:9053

約数の個数: 16

約数和(自身を含む): 33375840

約数和(自身を除く): 12581062

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8971, 17942, 170449, 340898, 547231, 1094462, 10397389, 20794778]

約数ペア:

[(1, 20794778), (2, 10397389), (19, 1094462), (38, 547231), (61, 340898), (122, 170449), (1159, 17942), (2318, 8971)]