1998439956

素因数分解:

$2^2\times 3^2\times {\mathrm{55512221}}^1$

素因数の和:55512231

約数の個数: 18

約数和(自身を含む): 5051612202

約数和(自身を除く): 3053172246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 55512221, 111024442, 166536663, 222048884, 333073326, 499609989, 666146652, 999219978, 1998439956]

約数ペア:

[(1, 1998439956), (2, 999219978), (3, 666146652), (4, 499609989), (6, 333073326), (9, 222048884), (12, 166536663), (18, 111024442), (36, 55512221)]