21422230

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5507}}^1$

素因数の和:5903

約数の個数: 16

約数和(自身を含む): 38666160

約数和(自身を除く): 17243930

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 5507, 11014, 27535, 55070, 2142223, 4284446, 10711115, 21422230]

約数ペア:

[(1, 21422230), (2, 10711115), (5, 4284446), (10, 2142223), (389, 55070), (778, 27535), (1945, 11014), (3890, 5507)]