4441778

素因数分解:

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

素因数の和:2113

約数の個数: 16

約数和(自身を含む): 7344000

約数和(自身を除く): 2902222

約数列:

[1, 2, 11, 22, 101, 202, 1111, 1999, 2222, 3998, 21989, 43978, 201899, 403798, 2220889, 4441778]

約数ペア:

[(1, 4441778), (2, 2220889), (11, 403798), (22, 201899), (101, 43978), (202, 21989), (1111, 3998), (1999, 2222)]