1245982563

素因数分解:

$3^2\times 7^1\times {\mathrm{19777501}}^1$

素因数の和:19777514

約数の個数: 12

約数和(自身を含む): 2056860208

約数和(自身を除く): 810877645

約数列:

[1, 3, 7, 9, 21, 63, 19777501, 59332503, 138442507, 177997509, 415327521, 1245982563]

約数ペア:

[(1, 1245982563), (3, 415327521), (7, 177997509), (9, 138442507), (21, 59332503), (63, 19777501)]