21043254

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81563}}^1$

素因数の和:81611

約数の個数: 16

約数和(自身を含む): 43065792

約数和(自身を除く): 22022538

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81563, 163126, 244689, 489378, 3507209, 7014418, 10521627, 21043254]

約数ペア:

[(1, 21043254), (2, 10521627), (3, 7014418), (6, 3507209), (43, 489378), (86, 244689), (129, 163126), (258, 81563)]