20214997569

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{330359}}^1$

素因数の和:330901

約数の個数: 24

約数和(自身を含む): 31505772480

約数和(自身を除く): 11290774911

約数列:

[1, 3, 9, 13, 39, 117, 523, 1569, 4707, 6799, 20397, 61191, 330359, 991077, 2973231, 4294667, 12884001, 38652003, 172777757, 518333271, 1554999813, 2246110841, 6738332523, 20214997569]

約数ペア:

[(1, 20214997569), (3, 6738332523), (9, 2246110841), (13, 1554999813), (39, 518333271), (117, 172777757), (523, 38652003), (1569, 12884001), (4707, 4294667), (6799, 2973231), (20397, 991077), (61191, 330359)]