217204321

素因数分解:

${\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 227865600

約数和(自身を除く): 10661279

約数列:

[1, 31, 137, 199, 257, 4247, 6169, 7967, 27263, 35209, 51143, 845153, 1091479, 1585433, 7006591, 217204321]

約数ペア:

[(1, 217204321), (31, 7006591), (137, 1585433), (199, 1091479), (257, 845153), (4247, 51143), (6169, 35209), (7967, 27263)]