18386781

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6299}}^1$

素因数の和:6448

約数の個数: 16

約数和(自身を含む): 28224000

約数和(自身を除く): 9837219

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6299, 18897, 44093, 132279, 875561, 2626683, 6128927, 18386781]

約数ペア:

[(1, 18386781), (3, 6128927), (7, 2626683), (21, 875561), (139, 132279), (417, 44093), (973, 18897), (2919, 6299)]