1280253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1931}}^1$

素因数の和:1964

約数の個数: 16

約数和(自身を含む): 1947456

約数和(自身を除く): 667203

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 1931, 5793, 25103, 32827, 75309, 98481, 426751, 1280253]

約数ペア:

[(1, 1280253), (3, 426751), (13, 98481), (17, 75309), (39, 32827), (51, 25103), (221, 5793), (663, 1931)]