21803480

素因数分解:

$2^3\times 5^1\times {\mathrm{545087}}^1$

素因数の和:545098

約数の個数: 16

約数和(自身を含む): 49057920

約数和(自身を除く): 27254440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 545087, 1090174, 2180348, 2725435, 4360696, 5450870, 10901740, 21803480]

約数ペア:

[(1, 21803480), (2, 10901740), (4, 5450870), (5, 4360696), (8, 2725435), (10, 2180348), (20, 1090174), (40, 545087)]