81968265

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{10529}}^1$

素因数の和:10713

約数の個数: 24

約数和(自身を含む): 142913160

約数和(自身を除く): 60944895

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 10529, 31587, 52645, 94761, 157935, 473805, 1821517, 5464551, 9107585, 16393653, 27322755, 81968265]

約数ペア:

[(1, 81968265), (3, 27322755), (5, 16393653), (9, 9107585), (15, 5464551), (45, 1821517), (173, 473805), (519, 157935), (865, 94761), (1557, 52645), (2595, 31587), (7785, 10529)]