20285287

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 24016608

約数和(自身を除く): 3731321

約数列:

[1, 11, 23, 37, 121, 197, 253, 407, 851, 2167, 2783, 4477, 4531, 7289, 9361, 23837, 49841, 80179, 102971, 167647, 548251, 881969, 1844117, 20285287]

約数ペア:

[(1, 20285287), (11, 1844117), (23, 881969), (37, 548251), (121, 167647), (197, 102971), (253, 80179), (407, 49841), (851, 23837), (2167, 9361), (2783, 7289), (4477, 4531)]