20929865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4817}}^1$

素因数の和:4912

約数の個数: 16

約数和(自身を含む): 27751680

約数和(自身を除く): 6821815

約数列:

[1, 5, 11, 55, 79, 395, 869, 4345, 4817, 24085, 52987, 264935, 380543, 1902715, 4185973, 20929865]

約数ペア:

[(1, 20929865), (5, 4185973), (11, 1902715), (55, 380543), (79, 264935), (395, 52987), (869, 24085), (4345, 4817)]