21111695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8167}}^1$

素因数の和:8230

約数の個数: 16

約数和(自身を含む): 28228608

約数和(自身を除く): 7116913

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 8167, 40835, 89837, 383849, 449185, 1919245, 4222339, 21111695]

約数ペア:

[(1, 21111695), (5, 4222339), (11, 1919245), (47, 449185), (55, 383849), (235, 89837), (517, 40835), (2585, 8167)]