21607480

素因数分解:

$2^3\times 5^1\times {\mathrm{540187}}^1$

素因数の和:540198

約数の個数: 16

約数和(自身を含む): 48616920

約数和(自身を除く): 27009440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540187, 1080374, 2160748, 2700935, 4321496, 5401870, 10803740, 21607480]

約数ペア:

[(1, 21607480), (2, 10803740), (4, 5401870), (5, 4321496), (8, 2700935), (10, 2160748), (20, 1080374), (40, 540187)]