19740861

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{701}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 13955139

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 701, 1043, 1341, 2103, 3129, 4023, 4907, 6309, 9387, 14721, 18927, 28161, 44163, 104449, 132489, 313347, 731143, 940041, 2193429, 2820123, 6580287, 19740861]

約数ペア:

[(1, 19740861), (3, 6580287), (7, 2820123), (9, 2193429), (21, 940041), (27, 731143), (63, 313347), (149, 132489), (189, 104449), (447, 44163), (701, 28161), (1043, 18927), (1341, 14721), (2103, 9387), (3129, 6309), (4023, 4907)]