21044639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{811}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 26347776

約数和(自身を除く): 5303137

約数列:

[1, 7, 11, 77, 337, 811, 2359, 3707, 5677, 8921, 25949, 62447, 273307, 1913149, 3006377, 21044639]

約数ペア:

[(1, 21044639), (7, 3006377), (11, 1913149), (77, 273307), (337, 62447), (811, 25949), (2359, 8921), (3707, 5677)]