21164686

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{571}}^1$

素因数の和:1047

約数の個数: 16

約数和(自身を含む): 32617728

約数和(自身を除く): 11453042

約数列:

[1, 2, 43, 86, 431, 571, 862, 1142, 18533, 24553, 37066, 49106, 246101, 492202, 10582343, 21164686]

約数ペア:

[(1, 21164686), (2, 10582343), (43, 492202), (86, 246101), (431, 49106), (571, 37066), (862, 24553), (1142, 18533)]