998739

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 1677312

約数和(自身を除く): 678573

約数列:

[1, 3, 7, 9, 21, 63, 83, 191, 249, 573, 581, 747, 1337, 1719, 1743, 4011, 5229, 12033, 15853, 47559, 110971, 142677, 332913, 998739]

約数ペア:

[(1, 998739), (3, 332913), (7, 142677), (9, 110971), (21, 47559), (63, 15853), (83, 12033), (191, 5229), (249, 4011), (573, 1743), (581, 1719), (747, 1337)]