21690099

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{809}}^1$

素因数の和:1152

約数の個数: 20

約数和(自身を含む): 32539320

約数和(自身を除く): 10849221

約数列:

[1, 3, 9, 27, 81, 331, 809, 993, 2427, 2979, 7281, 8937, 21843, 26811, 65529, 267779, 803337, 2410011, 7230033, 21690099]

約数ペア:

[(1, 21690099), (3, 7230033), (9, 2410011), (27, 803337), (81, 267779), (331, 65529), (809, 26811), (993, 21843), (2427, 8937), (2979, 7281)]