20307729

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2909}}^1$

素因数の和:3104

約数の個数: 16

約数和(自身を含む): 29332800

約数和(自身を除く): 9025071

約数列:

[1, 3, 13, 39, 179, 537, 2327, 2909, 6981, 8727, 37817, 113451, 520711, 1562133, 6769243, 20307729]

約数ペア:

[(1, 20307729), (3, 6769243), (13, 1562133), (39, 520711), (179, 113451), (537, 37817), (2327, 8727), (2909, 6981)]