20155779

素因数分解:

$3^2\times 7^1\times {\mathrm{463}}^1\times {\mathrm{691}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 33393152

約数和(自身を除く): 13237373

約数列:

[1, 3, 7, 9, 21, 63, 463, 691, 1389, 2073, 3241, 4167, 4837, 6219, 9723, 14511, 29169, 43533, 319933, 959799, 2239531, 2879397, 6718593, 20155779]

約数ペア:

[(1, 20155779), (3, 6718593), (7, 2879397), (9, 2239531), (21, 959799), (63, 319933), (463, 43533), (691, 29169), (1389, 14511), (2073, 9723), (3241, 6219), (4167, 4837)]