18640048

素因数分解:

$2^4\times 7^1\times {\mathrm{166429}}^1$

素因数の和:166444

約数の個数: 20

約数和(自身を含む): 41274640

約数和(自身を除く): 22634592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 166429, 332858, 665716, 1165003, 1331432, 2330006, 2662864, 4660012, 9320024, 18640048]

約数ペア:

[(1, 18640048), (2, 9320024), (4, 4660012), (7, 2662864), (8, 2330006), (14, 1331432), (16, 1165003), (28, 665716), (56, 332858), (112, 166429)]