20171781651

素因数分解:

$3^1\times 7^1\times {\mathrm{4987}}^1\times {\mathrm{192613}}^1$

素因数の和:197610

約数の個数: 16

約数和(自身を含む): 30744276224

約数和(自身を除く): 10572494573

約数列:

[1, 3, 7, 21, 4987, 14961, 34909, 104727, 192613, 577839, 1348291, 4044873, 960561031, 2881683093, 6723927217, 20171781651]

約数ペア:

[(1, 20171781651), (3, 6723927217), (7, 2881683093), (21, 960561031), (4987, 4044873), (14961, 1348291), (34909, 577839), (104727, 192613)]