642431999

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^3\times {\mathrm{1153}}^1$

素因数の和:1275

約数の個数: 16

約数和(自身を含む): 720926880

約数和(自身を除く): 78494881

約数列:

[1, 11, 37, 407, 1153, 1369, 12683, 15059, 42661, 50653, 469271, 557183, 1578457, 17363027, 58402909, 642431999]

約数ペア:

[(1, 642431999), (11, 58402909), (37, 17363027), (407, 1578457), (1153, 557183), (1369, 469271), (12683, 50653), (15059, 42661)]