209217543

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{20639}}^1$

素因数の和:20782

約数の個数: 16

約数和(自身を含む): 290611200

約数和(自身を除く): 81393657

約数列:

[1, 3, 31, 93, 109, 327, 3379, 10137, 20639, 61917, 639809, 1919427, 2249651, 6748953, 69739181, 209217543]

約数ペア:

[(1, 209217543), (3, 69739181), (31, 6748953), (93, 2249651), (109, 1919427), (327, 639809), (3379, 61917), (10137, 20639)]