18935007

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1613}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 31815168

約数和(自身を除く): 12880161

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1613, 1677, 3913, 4839, 11291, 11739, 20969, 33873, 62907, 69359, 146783, 208077, 440349, 485513, 901667, 1456539, 2705001, 6311669, 18935007]

約数ペア:

[(1, 18935007), (3, 6311669), (7, 2705001), (13, 1456539), (21, 901667), (39, 485513), (43, 440349), (91, 208077), (129, 146783), (273, 69359), (301, 62907), (559, 33873), (903, 20969), (1613, 11739), (1677, 11291), (3913, 4839)]