21120432

素因数分解:

$2^4\times 3^1\times {\mathrm{440009}}^1$

素因数の和:440020

約数の個数: 20

約数和(自身を含む): 54561240

約数和(自身を除く): 33440808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 440009, 880018, 1320027, 1760036, 2640054, 3520072, 5280108, 7040144, 10560216, 21120432]

約数ペア:

[(1, 21120432), (2, 10560216), (3, 7040144), (4, 5280108), (6, 3520072), (8, 2640054), (12, 1760036), (16, 1320027), (24, 880018), (48, 440009)]