16663478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1567}}^1$

素因数の和:1991

約数の個数: 16

約数和(自身を含む): 27000960

約数和(自身を除く): 10337482

約数列:

[1, 2, 13, 26, 409, 818, 1567, 3134, 5317, 10634, 20371, 40742, 640903, 1281806, 8331739, 16663478]

約数ペア:

[(1, 16663478), (2, 8331739), (13, 1281806), (26, 640903), (409, 40742), (818, 20371), (1567, 10634), (3134, 5317)]