221554319

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{3823}}^1$

素因数の和:4334

約数の個数: 16

約数和(自身を含む): 268720128

約数和(自身を除く): 47165809

約数列:

[1, 7, 17, 119, 487, 3409, 3823, 8279, 26761, 57953, 64991, 454937, 1861801, 13032607, 31650617, 221554319]

約数ペア:

[(1, 221554319), (7, 31650617), (17, 13032607), (119, 1861801), (487, 454937), (3409, 64991), (3823, 57953), (8279, 26761)]