209948907

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{78721}}^1$

素因数の和:78858

約数の個数: 16

約数和(自身を含む): 322445312

約数和(自身を除く): 112496405

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 78721, 236163, 551047, 1653141, 9997567, 29992701, 69982969, 209948907]

約数ペア:

[(1, 209948907), (3, 69982969), (7, 29992701), (21, 9997567), (127, 1653141), (381, 551047), (889, 236163), (2667, 78721)]