209924281

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 254513664

約数和(自身を除く): 44589383

約数列:

[1, 7, 31, 49, 113, 217, 791, 1223, 1519, 3503, 5537, 8561, 24521, 37913, 59927, 138199, 171647, 265391, 967393, 1857737, 4284169, 6771751, 29989183, 209924281]

約数ペア:

[(1, 209924281), (7, 29989183), (31, 6771751), (49, 4284169), (113, 1857737), (217, 967393), (791, 265391), (1223, 171647), (1519, 138199), (3503, 59927), (5537, 37913), (8561, 24521)]