20716816

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17737}}^1$

素因数の和:17818

約数の個数: 20

約数和(自身を含む): 40690972

約数和(自身を除く): 19974156

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17737, 35474, 70948, 141896, 283792, 1294801, 2589602, 5179204, 10358408, 20716816]

約数ペア:

[(1, 20716816), (2, 10358408), (4, 5179204), (8, 2589602), (16, 1294801), (73, 283792), (146, 141896), (292, 70948), (584, 35474), (1168, 17737)]