20442716

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16979}}^1$

素因数の和:17033

約数の個数: 24

約数和(自身を含む): 41838720

約数和(自身を除く): 21396004

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16979, 33958, 67916, 118853, 237706, 475412, 730097, 1460194, 2920388, 5110679, 10221358, 20442716]

約数ペア:

[(1, 20442716), (2, 10221358), (4, 5110679), (7, 2920388), (14, 1460194), (28, 730097), (43, 475412), (86, 237706), (172, 118853), (301, 67916), (602, 33958), (1204, 16979)]