18720678

素因数分解:

$2^1\times 3^1\times {\mathrm{151}}^1\times {\mathrm{20663}}^1$

素因数の和:20819

約数の個数: 16

約数和(自身を含む): 37691136

約数和(自身を除く): 18970458

約数列:

[1, 2, 3, 6, 151, 302, 453, 906, 20663, 41326, 61989, 123978, 3120113, 6240226, 9360339, 18720678]

約数ペア:

[(1, 18720678), (2, 9360339), (3, 6240226), (6, 3120113), (151, 123978), (302, 61989), (453, 41326), (906, 20663)]