20891673

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5147}}^1$

素因数の和:5205

約数の個数: 24

約数和(自身を含む): 33729696

約数和(自身を除く): 12838023

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5147, 15441, 46323, 56617, 169851, 211027, 509553, 633081, 1899243, 2321297, 6963891, 20891673]

約数ペア:

[(1, 20891673), (3, 6963891), (9, 2321297), (11, 1899243), (33, 633081), (41, 509553), (99, 211027), (123, 169851), (369, 56617), (451, 46323), (1353, 15441), (4059, 5147)]