21846640

素因数分解:

$2^4\times 5^1\times {\mathrm{273083}}^1$

素因数の和:273096

約数の個数: 20

約数和(自身を含む): 50793624

約数和(自身を除く): 28946984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273083, 546166, 1092332, 1365415, 2184664, 2730830, 4369328, 5461660, 10923320, 21846640]

約数ペア:

[(1, 21846640), (2, 10923320), (4, 5461660), (5, 4369328), (8, 2730830), (10, 2184664), (16, 1365415), (20, 1092332), (40, 546166), (80, 273083)]