21949444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2237}}^1$

素因数の和:2475

約数の個数: 24

約数和(自身を含む): 42110208

約数和(自身を除く): 20160764

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2237, 2453, 4474, 4906, 8948, 9812, 24607, 49214, 98428, 498851, 997702, 1995404, 5487361, 10974722, 21949444]

約数ペア:

[(1, 21949444), (2, 10974722), (4, 5487361), (11, 1995404), (22, 997702), (44, 498851), (223, 98428), (446, 49214), (892, 24607), (2237, 9812), (2453, 8948), (4474, 4906)]