19987107

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50093}}^1$

素因数の和:50122

約数の個数: 16

約数和(自身を含む): 32060160

約数和(自身を除く): 12073053

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50093, 150279, 350651, 951767, 1051953, 2855301, 6662369, 19987107]

約数ペア:

[(1, 19987107), (3, 6662369), (7, 2855301), (19, 1051953), (21, 951767), (57, 350651), (133, 150279), (399, 50093)]