20619489

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 30945376

約数和(自身を除く): 10325887

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1321, 1419, 3963, 5203, 14531, 15609, 43593, 56803, 159841, 170409, 479523, 624833, 1874499, 6873163, 20619489]

約数ペア:

[(1, 20619489), (3, 6873163), (11, 1874499), (33, 624833), (43, 479523), (121, 170409), (129, 159841), (363, 56803), (473, 43593), (1321, 15609), (1419, 14531), (3963, 5203)]