1389297

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{727}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 2323776

約数和(自身を除く): 934479

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 727, 1911, 2181, 5089, 9451, 15267, 28353, 35623, 66157, 106869, 198471, 463099, 1389297]

約数ペア:

[(1, 1389297), (3, 463099), (7, 198471), (13, 106869), (21, 66157), (39, 35623), (49, 28353), (91, 15267), (147, 9451), (273, 5089), (637, 2181), (727, 1911)]