21558614

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139991}}^1$

素因数の和:140011

約数の個数: 16

約数和(自身を含む): 40317696

約数和(自身を除く): 18759082

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139991, 279982, 979937, 1539901, 1959874, 3079802, 10779307, 21558614]

約数ペア:

[(1, 21558614), (2, 10779307), (7, 3079802), (11, 1959874), (14, 1539901), (22, 979937), (77, 279982), (154, 139991)]