19815804

素因数分解:

$2^2\times 3^2\times {\mathrm{550439}}^1$

素因数の和:550449

約数の個数: 18

約数和(自身を含む): 50090040

約数和(自身を除く): 30274236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550439, 1100878, 1651317, 2201756, 3302634, 4953951, 6605268, 9907902, 19815804]

約数ペア:

[(1, 19815804), (2, 9907902), (3, 6605268), (4, 4953951), (6, 3302634), (9, 2201756), (12, 1651317), (18, 1100878), (36, 550439)]