6639843

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2657}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 10908432

約数和(自身を除く): 4268589

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 2657, 7971, 18599, 45169, 55797, 130193, 135507, 316183, 390579, 948549, 2213281, 6639843]

約数ペア:

[(1, 6639843), (3, 2213281), (7, 948549), (17, 390579), (21, 316183), (49, 135507), (51, 130193), (119, 55797), (147, 45169), (357, 18599), (833, 7971), (2499, 2657)]