16854890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 32855760

約数和(自身を除く): 16000870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 409, 634, 818, 1585, 2045, 3170, 4090, 4121, 5317, 8242, 10634, 20605, 26585, 41210, 53170, 129653, 259306, 648265, 1296530, 1685489, 3370978, 8427445, 16854890]

約数ペア:

[(1, 16854890), (2, 8427445), (5, 3370978), (10, 1685489), (13, 1296530), (26, 648265), (65, 259306), (130, 129653), (317, 53170), (409, 41210), (634, 26585), (818, 20605), (1585, 10634), (2045, 8242), (3170, 5317), (4090, 4121)]