49995999

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{78241}}^1$

素因数の和:78318

約数の個数: 12

約数和(自身を含む): 73234512

約数和(自身を除く): 23238513

約数列:

[1, 3, 9, 71, 213, 639, 78241, 234723, 704169, 5555111, 16665333, 49995999]

約数ペア:

[(1, 49995999), (3, 16665333), (9, 5555111), (71, 704169), (213, 234723), (639, 78241)]