20877567

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 28439040

約数和(自身を除く): 7561473

約数列:

[1, 3, 79, 137, 237, 411, 643, 1929, 10823, 32469, 50797, 88091, 152391, 264273, 6959189, 20877567]

約数ペア:

[(1, 20877567), (3, 6959189), (79, 264273), (137, 152391), (237, 88091), (411, 50797), (643, 32469), (1929, 10823)]