18968691

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{22031}}^1$

素因数の和:22082

約数の個数: 16

約数和(自身を含む): 29611008

約数和(自身を除く): 10642317

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 22031, 66093, 154217, 462651, 903271, 2709813, 6322897, 18968691]

約数ペア:

[(1, 18968691), (3, 6322897), (7, 2709813), (21, 903271), (41, 462651), (123, 154217), (287, 66093), (861, 22031)]