21122132391

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{4561}}^1\times {\mathrm{13907}}^1$

素因数の和:18511

約数の個数: 24

約数和(自身を含む): 31343458224

約数和(自身を除く): 10221325833

約数列:

[1, 3, 9, 37, 111, 333, 4561, 13683, 13907, 41049, 41721, 125163, 168757, 506271, 514559, 1518813, 1543677, 4631031, 63429827, 190289481, 570868443, 2346903599, 7040710797, 21122132391]

約数ペア:

[(1, 21122132391), (3, 7040710797), (9, 2346903599), (37, 570868443), (111, 190289481), (333, 63429827), (4561, 4631031), (13683, 1543677), (13907, 1518813), (41049, 514559), (41721, 506271), (125163, 168757)]