20693071

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1174

約数の個数: 16

約数和(自身を含む): 25077760

約数和(自身を除く): 4384689

約数列:

[1, 7, 19, 133, 157, 991, 1099, 2983, 6937, 18829, 20881, 131803, 155587, 1089109, 2956153, 20693071]

約数ペア:

[(1, 20693071), (7, 2956153), (19, 1089109), (133, 155587), (157, 131803), (991, 20881), (1099, 18829), (2983, 6937)]