20450979

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3187}}^1$

素因数の和:3247

約数の個数: 24

約数和(自身を含む): 31828992

約数和(自身を除く): 11378013

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 3187, 6417, 9561, 28683, 73301, 98797, 219903, 296391, 659709, 889173, 2272331, 6816993, 20450979]

約数ペア:

[(1, 20450979), (3, 6816993), (9, 2272331), (23, 889173), (31, 659709), (69, 296391), (93, 219903), (207, 98797), (279, 73301), (713, 28683), (2139, 9561), (3187, 6417)]