19899866

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{15971}}^1$

素因数の和:16069

約数の個数: 16

約数和(自身を含む): 34499520

約数和(自身を除く): 14599654

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 15971, 31942, 111797, 223594, 1421419, 2842838, 9949933, 19899866]

約数ペア:

[(1, 19899866), (2, 9949933), (7, 2842838), (14, 1421419), (89, 223594), (178, 111797), (623, 31942), (1246, 15971)]