20454021

素因数分解:

$3^2\times 7^2\times {\mathrm{46381}}^1$

素因数の和:46401

約数の個数: 18

約数和(自身を含む): 34369062

約数和(自身を除く): 13915041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46381, 139143, 324667, 417429, 974001, 2272669, 2922003, 6818007, 20454021]

約数ペア:

[(1, 20454021), (3, 6818007), (7, 2922003), (9, 2272669), (21, 974001), (49, 417429), (63, 324667), (147, 139143), (441, 46381)]