21889161

素因数分解:

$3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{1031}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 36276864

約数和(自身を除く): 14387703

約数列:

[1, 3, 7, 9, 21, 63, 337, 1011, 1031, 2359, 3033, 3093, 7077, 7217, 9279, 21231, 21651, 64953, 347447, 1042341, 2432129, 3127023, 7296387, 21889161]

約数ペア:

[(1, 21889161), (3, 7296387), (7, 3127023), (9, 2432129), (21, 1042341), (63, 347447), (337, 64953), (1011, 21651), (1031, 21231), (2359, 9279), (3033, 7217), (3093, 7077)]