21760851

素因数分解:

$3^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{827}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 33981120

約数和(自身を除く): 12220269

約数列:

[1, 3, 7, 21, 49, 147, 179, 537, 827, 1253, 2481, 3759, 5789, 8771, 17367, 26313, 40523, 121569, 148033, 444099, 1036231, 3108693, 7253617, 21760851]

約数ペア:

[(1, 21760851), (3, 7253617), (7, 3108693), (21, 1036231), (49, 444099), (147, 148033), (179, 121569), (537, 40523), (827, 26313), (1253, 17367), (2481, 8771), (3759, 5789)]