19315672971

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21390557}}^1$

素因数の和:21390610

約数の個数: 16

約数和(自身を含む): 30117905664

約数和(自身を除く): 10802232693

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21390557, 64171671, 149733899, 449201697, 919793951, 2759381853, 6438557657, 19315672971]

約数ペア:

[(1, 19315672971), (3, 6438557657), (7, 2759381853), (21, 919793951), (43, 449201697), (129, 149733899), (301, 64171671), (903, 21390557)]