18914819

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4027}}^1$

素因数の和:4106

約数の個数: 16

約数和(自身を含む): 23974656

約数和(自身を除く): 5059837

約数列:

[1, 7, 11, 61, 77, 427, 671, 4027, 4697, 28189, 44297, 245647, 310079, 1719529, 2702117, 18914819]

約数ペア:

[(1, 18914819), (7, 2702117), (11, 1719529), (61, 310079), (77, 245647), (427, 44297), (671, 28189), (4027, 4697)]