19520281

素因数分解:

${\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:384

約数の個数: 16

約数和(自身を含む): 21841920

約数和(自身を除く): 2321639

約数列:

[1, 11, 89, 127, 157, 979, 1397, 1727, 11303, 13973, 19939, 124333, 153703, 219329, 1774571, 19520281]

約数ペア:

[(1, 19520281), (11, 1774571), (89, 219329), (127, 153703), (157, 124333), (979, 19939), (1397, 13973), (1727, 11303)]