21382120

素因数分解:

$2^3\times 5^1\times {\mathrm{534553}}^1$

素因数の和:534564

約数の個数: 16

約数和(自身を含む): 48109860

約数和(自身を除く): 26727740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 534553, 1069106, 2138212, 2672765, 4276424, 5345530, 10691060, 21382120]

約数ペア:

[(1, 21382120), (2, 10691060), (4, 5345530), (5, 4276424), (8, 2672765), (10, 2138212), (20, 1069106), (40, 534553)]