20809929441

素因数分解:

$3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{3767867}}^1$

素因数の和:3768140

約数の個数: 16

約数和(自身を含む): 31830948864

約数和(自身を除く): 11021019423

約数列:

[1, 3, 7, 21, 263, 789, 1841, 5523, 3767867, 11303601, 26375069, 79125207, 990949021, 2972847063, 6936643147, 20809929441]

約数ペア:

[(1, 20809929441), (3, 6936643147), (7, 2972847063), (21, 990949021), (263, 79125207), (789, 26375069), (1841, 11303601), (5523, 3767867)]