21702051

素因数分解:

$3^2\times 7^2\times {\mathrm{49211}}^1$

素因数の和:49231

約数の個数: 18

約数和(自身を含む): 36466092

約数和(自身を除く): 14764041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 49211, 147633, 344477, 442899, 1033431, 2411339, 3100293, 7234017, 21702051]

約数ペア:

[(1, 21702051), (3, 7234017), (7, 3100293), (9, 2411339), (21, 1033431), (49, 442899), (63, 344477), (147, 147633), (441, 49211)]