13278657

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{877}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 20819136

約数和(自身を除く): 7540479

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 877, 2163, 2631, 5047, 6139, 15141, 18417, 42973, 90331, 128919, 270993, 632317, 1896951, 4426219, 13278657]

約数ペア:

[(1, 13278657), (3, 4426219), (7, 1896951), (21, 632317), (49, 270993), (103, 128919), (147, 90331), (309, 42973), (721, 18417), (877, 15141), (2163, 6139), (2631, 5047)]