19818468

素因数分解:

$2^2\times 3^2\times {\mathrm{550513}}^1$

素因数の和:550523

約数の個数: 18

約数和(自身を含む): 50096774

約数和(自身を除く): 30278306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550513, 1101026, 1651539, 2202052, 3303078, 4954617, 6606156, 9909234, 19818468]

約数ペア:

[(1, 19818468), (2, 9909234), (3, 6606156), (4, 4954617), (6, 3303078), (9, 2202052), (12, 1651539), (18, 1101026), (36, 550513)]