21706181

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4649}}^1$

素因数の和:4708

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 5077819

約数列:

[1, 7, 23, 29, 161, 203, 667, 4649, 4669, 32543, 106927, 134821, 748489, 943747, 3100883, 21706181]

約数ペア:

[(1, 21706181), (7, 3100883), (23, 943747), (29, 748489), (161, 134821), (203, 106927), (667, 32543), (4649, 4669)]