21591216

素因数分解:

$2^4\times 3^2\times {\mathrm{149939}}^1$

素因数の和:149953

約数の個数: 30

約数和(自身を含む): 60425820

約数和(自身を除く): 38834604

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 149939, 299878, 449817, 599756, 899634, 1199512, 1349451, 1799268, 2399024, 2698902, 3598536, 5397804, 7197072, 10795608, 21591216]

約数ペア:

[(1, 21591216), (2, 10795608), (3, 7197072), (4, 5397804), (6, 3598536), (8, 2698902), (9, 2399024), (12, 1799268), (16, 1349451), (18, 1199512), (24, 899634), (36, 599756), (48, 449817), (72, 299878), (144, 149939)]