22208890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2118

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 21855110

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 1999, 2222, 3998, 5555, 9995, 11110, 19990, 21989, 43978, 109945, 201899, 219890, 403798, 1009495, 2018990, 2220889, 4441778, 11104445, 22208890]

約数ペア:

[(1, 22208890), (2, 11104445), (5, 4441778), (10, 2220889), (11, 2018990), (22, 1009495), (55, 403798), (101, 219890), (110, 201899), (202, 109945), (505, 43978), (1010, 21989), (1111, 19990), (1999, 11110), (2222, 9995), (3998, 5555)]