1272921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:400

約数の個数: 16

約数和(自身を含む): 1849344

約数和(自身を除く): 576423

約数列:

[1, 3, 13, 39, 127, 257, 381, 771, 1651, 3341, 4953, 10023, 32639, 97917, 424307, 1272921]

約数ペア:

[(1, 1272921), (3, 424307), (13, 97917), (39, 32639), (127, 10023), (257, 4953), (381, 3341), (771, 1651)]