20493039

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51361}}^1$

素因数の和:51390

約数の個数: 16

約数和(自身を含む): 32871680

約数和(自身を除く): 12378641

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51361, 154083, 359527, 975859, 1078581, 2927577, 6831013, 20493039]

約数ペア:

[(1, 20493039), (3, 6831013), (7, 2927577), (19, 1078581), (21, 975859), (57, 359527), (133, 154083), (399, 51361)]