2740521

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 4315584

約数和(自身を除く): 1575063

約数列:

[1, 3, 7, 21, 49, 103, 147, 181, 309, 543, 721, 1267, 2163, 3801, 5047, 8869, 15141, 18643, 26607, 55929, 130501, 391503, 913507, 2740521]

約数ペア:

[(1, 2740521), (3, 913507), (7, 391503), (21, 130501), (49, 55929), (103, 26607), (147, 18643), (181, 15141), (309, 8869), (543, 5047), (721, 3801), (1267, 2163)]