19805004

素因数分解:

$2^2\times 3^2\times {\mathrm{550139}}^1$

素因数の和:550149

約数の個数: 18

約数和(自身を含む): 50062740

約数和(自身を除く): 30257736

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550139, 1100278, 1650417, 2200556, 3300834, 4951251, 6601668, 9902502, 19805004]

約数ペア:

[(1, 19805004), (2, 9902502), (3, 6601668), (4, 4951251), (6, 3300834), (9, 2200556), (12, 1650417), (18, 1100278), (36, 550139)]