20879254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13367}}^1$

素因数の和:13451

約数の個数: 16

約数和(自身を含む): 34649856

約数和(自身を除く): 13770602

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13367, 26734, 147037, 294074, 949057, 1898114, 10439627, 20879254]

約数ペア:

[(1, 20879254), (2, 10439627), (11, 1898114), (22, 949057), (71, 294074), (142, 147037), (781, 26734), (1562, 13367)]