20790063

素因数分解:

$3^2\times 7^2\times {\mathrm{47143}}^1$

素因数の和:47163

約数の個数: 18

約数和(自身を含む): 34933704

約数和(自身を除く): 14143641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47143, 141429, 330001, 424287, 990003, 2310007, 2970009, 6930021, 20790063]

約数ペア:

[(1, 20790063), (3, 6930021), (7, 2970009), (9, 2310007), (21, 990003), (49, 424287), (63, 330001), (147, 141429), (441, 47143)]