28171297

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{15907}}^1$

素因数の和:15948

約数の個数: 16

約数和(自身を含む): 36652032

約数和(自身を除く): 8480735

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 15907, 111349, 174977, 365861, 1224839, 2561027, 4024471, 28171297]

約数ペア:

[(1, 28171297), (7, 4024471), (11, 2561027), (23, 1224839), (77, 365861), (161, 174977), (253, 111349), (1771, 15907)]