20862955

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4219}}^1$

素因数の和:4290

約数の個数: 16

約数和(自身を含む): 26737920

約数和(自身を除く): 5874965

約数列:

[1, 5, 23, 43, 115, 215, 989, 4219, 4945, 21095, 97037, 181417, 485185, 907085, 4172591, 20862955]

約数ペア:

[(1, 20862955), (5, 4172591), (23, 907085), (43, 485185), (115, 181417), (215, 97037), (989, 21095), (4219, 4945)]