20906778

素因数分解:

$2^1\times 3^1\times {\mathrm{353}}^1\times {\mathrm{9871}}^1$

素因数の和:10229

約数の個数: 16

約数和(自身を含む): 41936256

約数和(自身を除く): 21029478

約数列:

[1, 2, 3, 6, 353, 706, 1059, 2118, 9871, 19742, 29613, 59226, 3484463, 6968926, 10453389, 20906778]

約数ペア:

[(1, 20906778), (2, 10453389), (3, 6968926), (6, 3484463), (353, 59226), (706, 29613), (1059, 19742), (2118, 9871)]