20972228

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{887}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 38489472

約数和(自身を除く): 17517244

約数列:

[1, 2, 4, 23, 46, 92, 257, 514, 887, 1028, 1774, 3548, 5911, 11822, 20401, 23644, 40802, 81604, 227959, 455918, 911836, 5243057, 10486114, 20972228]

約数ペア:

[(1, 20972228), (2, 10486114), (4, 5243057), (23, 911836), (46, 455918), (92, 227959), (257, 81604), (514, 40802), (887, 23644), (1028, 20401), (1774, 11822), (3548, 5911)]