18889941

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7559}}^1$

素因数の和:7593

約数の個数: 24

約数和(自身を含む): 31026240

約数和(自身を除く): 12136299

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7559, 22677, 52913, 128503, 158739, 370391, 385509, 899521, 1111173, 2698563, 6296647, 18889941]

約数ペア:

[(1, 18889941), (3, 6296647), (7, 2698563), (17, 1111173), (21, 899521), (49, 385509), (51, 370391), (119, 158739), (147, 128503), (357, 52913), (833, 22677), (2499, 7559)]