20961545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2203}}^1$

素因数の和:2392

約数の個数: 16

約数和(自身を含む): 27611712

約数和(自身を除く): 6650167

約数列:

[1, 5, 11, 55, 173, 865, 1903, 2203, 9515, 11015, 24233, 121165, 381119, 1905595, 4192309, 20961545]

約数ペア:

[(1, 20961545), (5, 4192309), (11, 1905595), (55, 381119), (173, 121165), (865, 24233), (1903, 11015), (2203, 9515)]