19865263203

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{1417631}}^1$

素因数の和:1417816

約数の個数: 20

約数和(自身を含む): 29846824128

約数和(自身を除く): 9981560925

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 4671, 14013, 1417631, 4252893, 12758679, 38276037, 114828111, 245250163, 735750489, 2207251467, 6621754401, 19865263203]

約数ペア:

[(1, 19865263203), (3, 6621754401), (9, 2207251467), (27, 735750489), (81, 245250163), (173, 114828111), (519, 38276037), (1557, 12758679), (4671, 4252893), (14013, 1417631)]