209214719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{33469}}^1$

素因数の和:33542

約数の個数: 16

約数和(自身を含む): 257049600

約数和(自身を除く): 47834881

約数列:

[1, 7, 19, 47, 133, 329, 893, 6251, 33469, 234283, 635911, 1573043, 4451377, 11011301, 29887817, 209214719]

約数ペア:

[(1, 209214719), (7, 29887817), (19, 11011301), (47, 4451377), (133, 1573043), (329, 635911), (893, 234283), (6251, 33469)]