11872413

素因数分解:

$3^4\times 7^1\times {\mathrm{20939}}^1$

素因数の和:20958

約数の個数: 20

約数和(自身を含む): 20269920

約数和(自身を除く): 8397507

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 20939, 62817, 146573, 188451, 439719, 565353, 1319157, 1696059, 3957471, 11872413]

約数ペア:

[(1, 11872413), (3, 3957471), (7, 1696059), (9, 1319157), (21, 565353), (27, 439719), (63, 188451), (81, 146573), (189, 62817), (567, 20939)]