21095240

素因数分解:

$2^3\times 5^1\times {\mathrm{527381}}^1$

素因数の和:527392

約数の個数: 16

約数和(自身を含む): 47464380

約数和(自身を除く): 26369140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527381, 1054762, 2109524, 2636905, 4219048, 5273810, 10547620, 21095240]

約数ペア:

[(1, 21095240), (2, 10547620), (4, 5273810), (5, 4219048), (8, 2636905), (10, 2109524), (20, 1054762), (40, 527381)]