21003856

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{5783}}^1$

素因数の和:6018

約数の個数: 20

約数和(自身を含む): 40881312

約数和(自身を除く): 19877456

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 5783, 11566, 23132, 46264, 92528, 1312741, 2625482, 5250964, 10501928, 21003856]

約数ペア:

[(1, 21003856), (2, 10501928), (4, 5250964), (8, 2625482), (16, 1312741), (227, 92528), (454, 46264), (908, 23132), (1816, 11566), (3632, 5783)]