21675830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{1021}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 42825888

約数和(自身を除く): 21150058

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193, 386, 965, 1021, 1930, 2042, 2123, 4246, 5105, 10210, 10615, 11231, 21230, 22462, 56155, 112310, 197053, 394106, 985265, 1970530, 2167583, 4335166, 10837915, 21675830]

約数ペア:

[(1, 21675830), (2, 10837915), (5, 4335166), (10, 2167583), (11, 1970530), (22, 985265), (55, 394106), (110, 197053), (193, 112310), (386, 56155), (965, 22462), (1021, 21230), (1930, 11231), (2042, 10615), (2123, 10210), (4246, 5105)]