20264979

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4447}}^1$

素因数の和:4495

約数の個数: 24

約数和(自身を含む): 32452608

約数和(自身を除く): 12187629

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4447, 4557, 13341, 31129, 93387, 137857, 217903, 413571, 653709, 964999, 2894997, 6754993, 20264979]

約数ペア:

[(1, 20264979), (3, 6754993), (7, 2894997), (21, 964999), (31, 653709), (49, 413571), (93, 217903), (147, 137857), (217, 93387), (651, 31129), (1519, 13341), (4447, 4557)]