21291363891

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2125523}}^1$

素因数の和:2125592

約数の個数: 32

約数和(自身を含む): 36729054720

約数和(自身を除く): 15437690829

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 3339, 10017, 2125523, 6376569, 14878661, 19129707, 44635983, 57389121, 112652719, 133907949, 337958157, 401723847, 788569033, 1013874471, 2365707099, 3041623413, 7097121297, 21291363891]

約数ペア:

[(1, 21291363891), (3, 7097121297), (7, 3041623413), (9, 2365707099), (21, 1013874471), (27, 788569033), (53, 401723847), (63, 337958157), (159, 133907949), (189, 112652719), (371, 57389121), (477, 44635983), (1113, 19129707), (1431, 14878661), (3339, 6376569), (10017, 2125523)]