78845571

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{17627}}^1$

素因数の和:17711

約数の個数: 24

約数和(自身を含む): 131998464

約数和(自身を除く): 53152893

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 17627, 52881, 123389, 158643, 370167, 1110501, 1251517, 3754551, 8760619, 11263653, 26281857, 78845571]

約数ペア:

[(1, 78845571), (3, 26281857), (7, 11263653), (9, 8760619), (21, 3754551), (63, 1251517), (71, 1110501), (213, 370167), (497, 158643), (639, 123389), (1491, 52881), (4473, 17627)]