18806986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{4723}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 30951648

約数和(自身を除く): 12144662

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 4723, 9446, 51953, 103906, 854863, 1709726, 9403493, 18806986]

約数ペア:

[(1, 18806986), (2, 9403493), (11, 1709726), (22, 854863), (181, 103906), (362, 51953), (1991, 9446), (3982, 4723)]