20359269

素因数分解:

$3^5\times 7^1\times {\mathrm{11969}}^1$

素因数の和:11991

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 14497371

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11969, 35907, 83783, 107721, 251349, 323163, 754047, 969489, 2262141, 2908467, 6786423, 20359269]

約数ペア:

[(1, 20359269), (3, 6786423), (7, 2908467), (9, 2262141), (21, 969489), (27, 754047), (63, 323163), (81, 251349), (189, 107721), (243, 83783), (567, 35907), (1701, 11969)]