19964484

素因数分解:

$2^2\times 3^2\times {\mathrm{554569}}^1$

素因数の和:554579

約数の個数: 18

約数和(自身を含む): 50465870

約数和(自身を除く): 30501386

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 554569, 1109138, 1663707, 2218276, 3327414, 4991121, 6654828, 9982242, 19964484]

約数ペア:

[(1, 19964484), (2, 9982242), (3, 6654828), (4, 4991121), (6, 3327414), (9, 2218276), (12, 1663707), (18, 1109138), (36, 554569)]