20397718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19727}}^1$

素因数の和:19787

約数の個数: 16

約数和(自身を含む): 34089984

約数和(自身を除く): 13692266

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 19727, 39454, 216997, 433994, 927169, 1854338, 10198859, 20397718]

約数ペア:

[(1, 20397718), (2, 10198859), (11, 1854338), (22, 927169), (47, 433994), (94, 216997), (517, 39454), (1034, 19727)]