209215678

素因数分解:

$2^1\times 7^1\times {\mathrm{769}}^1\times {\mathrm{19433}}^1$

素因数の和:20211

約数の個数: 16

約数和(自身を含む): 359140320

約数和(自身を除く): 149924642

約数列:

[1, 2, 7, 14, 769, 1538, 5383, 10766, 19433, 38866, 136031, 272062, 14943977, 29887954, 104607839, 209215678]

約数ペア:

[(1, 209215678), (2, 104607839), (7, 29887954), (14, 14943977), (769, 272062), (1538, 136031), (5383, 38866), (10766, 19433)]