1288388619

素因数分解:

$3^3\times 7^1\times {\mathrm{6816871}}^1$

素因数の和:6816887

約数の個数: 16

約数和(自身を含む): 2181399040

約数和(自身を除く): 893010421

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 6816871, 20450613, 47718097, 61351839, 143154291, 184055517, 429462873, 1288388619]

約数ペア:

[(1, 1288388619), (3, 429462873), (7, 184055517), (9, 143154291), (21, 61351839), (27, 47718097), (63, 20450613), (189, 6816871)]