18659907

素因数分解:

$3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1229}}^1$

素因数の和:1483

約数の個数: 24

約数和(自身を含む): 30956640

約数和(自身を除く): 12296733

約数列:

[1, 3, 7, 9, 21, 63, 241, 723, 1229, 1687, 2169, 3687, 5061, 8603, 11061, 15183, 25809, 77427, 296189, 888567, 2073323, 2665701, 6219969, 18659907]

約数ペア:

[(1, 18659907), (3, 6219969), (7, 2665701), (9, 2073323), (21, 888567), (63, 296189), (241, 77427), (723, 25809), (1229, 15183), (1687, 11061), (2169, 8603), (3687, 5061)]