21728674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 15172190

約数列:

[1, 2, 11, 22, 43, 86, 103, 206, 223, 446, 473, 946, 1133, 2266, 2453, 4429, 4906, 8858, 9589, 19178, 22969, 45938, 48719, 97438, 105479, 210958, 252659, 505318, 987667, 1975334, 10864337, 21728674]

約数ペア:

[(1, 21728674), (2, 10864337), (11, 1975334), (22, 987667), (43, 505318), (86, 252659), (103, 210958), (206, 105479), (223, 97438), (446, 48719), (473, 45938), (946, 22969), (1133, 19178), (2266, 9589), (2453, 8858), (4429, 4906)]