1247267

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 16

約数和(自身を含む): 1523712

約数和(自身を除く): 276445

約数列:

[1, 7, 23, 61, 127, 161, 427, 889, 1403, 2921, 7747, 9821, 20447, 54229, 178181, 1247267]

約数ペア:

[(1, 1247267), (7, 178181), (23, 54229), (61, 20447), (127, 9821), (161, 7747), (427, 2921), (889, 1403)]