19386801

素因数分解:

$3^2\times 7^2\times {\mathrm{43961}}^1$

素因数の和:43981

約数の個数: 18

約数和(自身を含む): 32575842

約数和(自身を除く): 13189041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43961, 131883, 307727, 395649, 923181, 2154089, 2769543, 6462267, 19386801]

約数ペア:

[(1, 19386801), (3, 6462267), (7, 2769543), (9, 2154089), (21, 923181), (49, 395649), (63, 307727), (147, 131883), (441, 43961)]