21279115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29761}}^1$

素因数の和:29790

約数の個数: 16

約数和(自身を含む): 30000096

約数和(自身を除く): 8720981

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29761, 148805, 327371, 386893, 1636855, 1934465, 4255823, 21279115]

約数ペア:

[(1, 21279115), (5, 4255823), (11, 1934465), (13, 1636855), (55, 386893), (65, 327371), (143, 148805), (715, 29761)]