19409787

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8263}}^1$

素因数の和:8304

約数の個数: 20

約数和(自身を含む): 29998320

約数和(自身を除く): 10588533

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8263, 24789, 74367, 223101, 239627, 669303, 718881, 2156643, 6469929, 19409787]

約数ペア:

[(1, 19409787), (3, 6469929), (9, 2156643), (27, 718881), (29, 669303), (81, 239627), (87, 223101), (261, 74367), (783, 24789), (2349, 8263)]