18185181

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21121}}^1$

素因数の和:21172

約数の個数: 16

約数和(自身を含む): 28387968

約数和(自身を除く): 10202787

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21121, 63363, 147847, 443541, 865961, 2597883, 6061727, 18185181]

約数ペア:

[(1, 18185181), (3, 6061727), (7, 2597883), (21, 865961), (41, 443541), (123, 147847), (287, 63363), (861, 21121)]