18719686

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:408

約数の個数: 24

約数和(自身を含む): 30171960

約数和(自身を除く): 11452274

約数列:

[1, 2, 17, 34, 139, 233, 278, 289, 466, 578, 2363, 3961, 4726, 7922, 32387, 40171, 64774, 67337, 80342, 134674, 550579, 1101158, 9359843, 18719686]

約数ペア:

[(1, 18719686), (2, 9359843), (17, 1101158), (34, 550579), (139, 134674), (233, 80342), (278, 67337), (289, 64774), (466, 40171), (578, 32387), (2363, 7922), (3961, 4726)]