21904072

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{27109}}^1$

素因数の和:27216

約数の個数: 16

約数和(自身を含む): 41478300

約数和(自身を除く): 19574228

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 27109, 54218, 108436, 216872, 2738009, 5476018, 10952036, 21904072]

約数ペア:

[(1, 21904072), (2, 10952036), (4, 5476018), (8, 2738009), (101, 216872), (202, 108436), (404, 54218), (808, 27109)]