20949958

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:771

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 10983482

約数列:

[1, 2, 107, 214, 223, 439, 446, 878, 23861, 46973, 47722, 93946, 97897, 195794, 10474979, 20949958]

約数ペア:

[(1, 20949958), (2, 10474979), (107, 195794), (214, 97897), (223, 93946), (439, 47722), (446, 46973), (878, 23861)]