18867387

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81677}}^1$

素因数の和:81698

約数の個数: 16

約数和(自身を含む): 31364352

約数和(自身を除く): 12496965

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81677, 245031, 571739, 898447, 1715217, 2695341, 6289129, 18867387]

約数ペア:

[(1, 18867387), (3, 6289129), (7, 2695341), (11, 1715217), (21, 898447), (33, 571739), (77, 245031), (231, 81677)]