20992239

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 31795712

約数和(自身を除く): 10803473

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1123, 2077, 3369, 6231, 10107, 18693, 34813, 75241, 104439, 225723, 313317, 677169, 2332471, 6997413, 20992239]

約数ペア:

[(1, 20992239), (3, 6997413), (9, 2332471), (31, 677169), (67, 313317), (93, 225723), (201, 104439), (279, 75241), (603, 34813), (1123, 18693), (2077, 10107), (3369, 6231)]