208354321

素因数分解:

$7^3\times {\mathrm{131}}^1\times {\mathrm{4637}}^1$

素因数の和:4789

約数の個数: 16

約数和(自身を含む): 244886400

約数和(自身を除く): 36532079

約数列:

[1, 7, 49, 131, 343, 917, 4637, 6419, 32459, 44933, 227213, 607447, 1590491, 4252129, 29764903, 208354321]

約数ペア:

[(1, 208354321), (7, 29764903), (49, 4252129), (131, 1590491), (343, 607447), (917, 227213), (4637, 44933), (6419, 32459)]