21585712

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11939}}^1$

素因数の和:12060

約数の個数: 20

約数和(自身を含む): 42195960

約数和(自身を除く): 20610248

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11939, 23878, 47756, 95512, 191024, 1349107, 2698214, 5396428, 10792856, 21585712]

約数ペア:

[(1, 21585712), (2, 10792856), (4, 5396428), (8, 2698214), (16, 1349107), (113, 191024), (226, 95512), (452, 47756), (904, 23878), (1808, 11939)]