209967303

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109873}}^1$

素因数の和:109903

約数の個数: 24

約数和(自身を含む): 350717808

約数和(自身を除く): 140750505

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 109873, 329619, 769111, 1428349, 2307333, 4285047, 5383777, 9998443, 16151331, 29995329, 69989101, 209967303]

約数ペア:

[(1, 209967303), (3, 69989101), (7, 29995329), (13, 16151331), (21, 9998443), (39, 5383777), (49, 4285047), (91, 2307333), (147, 1428349), (273, 769111), (637, 329619), (1911, 109873)]