20965588

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39409}}^1$

素因数の和:39439

約数の個数: 24

約数和(自身を含む): 44139200

約数和(自身を除く): 23173612

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39409, 78818, 157636, 275863, 551726, 748771, 1103452, 1497542, 2995084, 5241397, 10482794, 20965588]

約数ペア:

[(1, 20965588), (2, 10482794), (4, 5241397), (7, 2995084), (14, 1497542), (19, 1103452), (28, 748771), (38, 551726), (76, 275863), (133, 157636), (266, 78818), (532, 39409)]