254503263

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1303}}^1$

素因数の和:1515

約数の個数: 32

約数和(自身を含む): 396582912

約数和(自身を除く): 142079649

約数列:

[1, 3, 7, 21, 71, 131, 213, 393, 497, 917, 1303, 1491, 2751, 3909, 9121, 9301, 27363, 27903, 65107, 92513, 170693, 195321, 277539, 512079, 647591, 1194851, 1942773, 3584553, 12119203, 36357609, 84834421, 254503263]

約数ペア:

[(1, 254503263), (3, 84834421), (7, 36357609), (21, 12119203), (71, 3584553), (131, 1942773), (213, 1194851), (393, 647591), (497, 512079), (917, 277539), (1303, 195321), (1491, 170693), (2751, 92513), (3909, 65107), (9121, 27903), (9301, 27363)]