20938638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17191}}^1$

素因数の和:17232

約数の個数: 32

約数和(自身を含む): 49512960

約数和(自身を除く): 28574322

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17191, 34382, 51573, 103146, 120337, 240674, 361011, 498539, 722022, 997078, 1495617, 2991234, 3489773, 6979546, 10469319, 20938638]

約数ペア:

[(1, 20938638), (2, 10469319), (3, 6979546), (6, 3489773), (7, 2991234), (14, 1495617), (21, 997078), (29, 722022), (42, 498539), (58, 361011), (87, 240674), (174, 120337), (203, 103146), (406, 51573), (609, 34382), (1218, 17191)]