21231441

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30637}}^1$

素因数の和:30661

約数の個数: 24

約数和(自身を含む): 38236224

約数和(自身を除く): 17004783

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30637, 91911, 214459, 275733, 337007, 643377, 1011021, 1930131, 2359049, 3033063, 7077147, 21231441]

約数ペア:

[(1, 21231441), (3, 7077147), (7, 3033063), (9, 2359049), (11, 1930131), (21, 1011021), (33, 643377), (63, 337007), (77, 275733), (99, 214459), (231, 91911), (693, 30637)]