210864969

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{30707}}^1$

素因数の和:30829

約数の個数: 24

約数和(自身を含む): 351299520

約数和(自身を除く): 140434551

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 30707, 92121, 214949, 276363, 644847, 1934541, 3347063, 10041189, 23429441, 30123567, 70288323, 210864969]

約数ペア:

[(1, 210864969), (3, 70288323), (7, 30123567), (9, 23429441), (21, 10041189), (63, 3347063), (109, 1934541), (327, 644847), (763, 276363), (981, 214949), (2289, 92121), (6867, 30707)]