20968143

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1319}}^1$

素因数の和:2086

約数の個数: 16

約数和(自身を含む): 32017920

約数和(自身を除く): 11049777

約数列:

[1, 3, 7, 21, 757, 1319, 2271, 3957, 5299, 9233, 15897, 27699, 998483, 2995449, 6989381, 20968143]

約数ペア:

[(1, 20968143), (3, 6989381), (7, 2995449), (21, 998483), (757, 27699), (1319, 15897), (2271, 9233), (3957, 5299)]