19818684

素因数分解:

$2^2\times 3^2\times {\mathrm{550519}}^1$

素因数の和:550529

約数の個数: 18

約数和(自身を含む): 50097320

約数和(自身を除く): 30278636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550519, 1101038, 1651557, 2202076, 3303114, 4954671, 6606228, 9909342, 19818684]

約数ペア:

[(1, 19818684), (2, 9909342), (3, 6606228), (4, 4954671), (6, 3303114), (9, 2202076), (12, 1651557), (18, 1101038), (36, 550519)]