21648009

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{787}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 29616192

約数和(自身を除く): 7968183

約数列:

[1, 3, 53, 159, 173, 519, 787, 2361, 9169, 27507, 41711, 125133, 136151, 408453, 7216003, 21648009]

約数ペア:

[(1, 21648009), (3, 7216003), (53, 408453), (159, 136151), (173, 125133), (519, 41711), (787, 27507), (2361, 9169)]