20949873

素因数分解:

$3^1\times 7^1\times {\mathrm{733}}^1\times {\mathrm{1361}}^1$

素因数の和:2104

約数の個数: 16

約数和(自身を含む): 31990656

約数和(自身を除く): 11040783

約数列:

[1, 3, 7, 21, 733, 1361, 2199, 4083, 5131, 9527, 15393, 28581, 997613, 2992839, 6983291, 20949873]

約数ペア:

[(1, 20949873), (3, 6983291), (7, 2992839), (21, 997613), (733, 28581), (1361, 15393), (2199, 9527), (4083, 5131)]