20679183

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5381}}^1$

素因数の和:5455

約数の個数: 24

約数和(自身を含む): 34703136

約数和(自身を除く): 14023953

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5381, 16143, 37667, 48429, 113001, 328241, 339003, 984723, 2297687, 2954169, 6893061, 20679183]

約数ペア:

[(1, 20679183), (3, 6893061), (7, 2954169), (9, 2297687), (21, 984723), (61, 339003), (63, 328241), (183, 113001), (427, 48429), (549, 37667), (1281, 16143), (3843, 5381)]