181378988

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{21521}}^1$

素因数の和:21582

約数の個数: 36

約数和(自身を含む): 377840232

約数和(自身を除く): 196461244

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214, 8428, 21521, 43042, 86084, 150647, 301294, 602588, 925403, 1054529, 1850806, 2109058, 3701612, 4218116, 6477821, 12955642, 25911284, 45344747, 90689494, 181378988]

約数ペア:

[(1, 181378988), (2, 90689494), (4, 45344747), (7, 25911284), (14, 12955642), (28, 6477821), (43, 4218116), (49, 3701612), (86, 2109058), (98, 1850806), (172, 1054529), (196, 925403), (301, 602588), (602, 301294), (1204, 150647), (2107, 86084), (4214, 43042), (8428, 21521)]