1388479869

素因数分解:

$3^2\times 7^1\times {\mathrm{859}}^1\times {\mathrm{25657}}^1$

素因数の和:26529

約数の個数: 24

約数和(自身を含む): 2294851520

約数和(自身を除く): 906371651

約数列:

[1, 3, 7, 9, 21, 63, 859, 2577, 6013, 7731, 18039, 25657, 54117, 76971, 179599, 230913, 538797, 1616391, 22039363, 66118089, 154275541, 198354267, 462826623, 1388479869]

約数ペア:

[(1, 1388479869), (3, 462826623), (7, 198354267), (9, 154275541), (21, 66118089), (63, 22039363), (859, 1616391), (2577, 538797), (6013, 230913), (7731, 179599), (18039, 76971), (25657, 54117)]