20078583

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 31401072

約数和(自身を除く): 11322489

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 997, 2877, 2991, 6713, 6979, 20139, 20937, 48853, 136589, 146559, 409767, 956123, 2868369, 6692861, 20078583]

約数ペア:

[(1, 20078583), (3, 6692861), (7, 2868369), (21, 956123), (49, 409767), (137, 146559), (147, 136589), (411, 48853), (959, 20937), (997, 20139), (2877, 6979), (2991, 6713)]