21703480

素因数分解:

$2^3\times 5^1\times {\mathrm{542587}}^1$

素因数の和:542598

約数の個数: 16

約数和(自身を含む): 48832920

約数和(自身を除く): 27129440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 542587, 1085174, 2170348, 2712935, 4340696, 5425870, 10851740, 21703480]

約数ペア:

[(1, 21703480), (2, 10851740), (4, 5425870), (5, 4340696), (8, 2712935), (10, 2170348), (20, 1085174), (40, 542587)]