20981566

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{1039}}^1$

素因数の和:1503

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 11965634

約数列:

[1, 2, 23, 46, 439, 878, 1039, 2078, 10097, 20194, 23897, 47794, 456121, 912242, 10490783, 20981566]

約数ペア:

[(1, 20981566), (2, 10490783), (23, 912242), (46, 456121), (439, 47794), (878, 23897), (1039, 20194), (2078, 10097)]