20216252

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{3989}}^1$

素因数の和:4181

約数の個数: 24

約数和(自身を含む): 40666080

約数和(自身を除く): 20449828

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 3989, 5068, 7978, 15956, 27923, 55846, 111692, 722009, 1444018, 2888036, 5054063, 10108126, 20216252]

約数ペア:

[(1, 20216252), (2, 10108126), (4, 5054063), (7, 2888036), (14, 1444018), (28, 722009), (181, 111692), (362, 55846), (724, 27923), (1267, 15956), (2534, 7978), (3989, 5068)]