21162478

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{631}}^1$

素因数の和:1083

約数の個数: 16

約数和(自身を含む): 32649120

約数和(自身を除く): 11486642

約数列:

[1, 2, 41, 82, 409, 631, 818, 1262, 16769, 25871, 33538, 51742, 258079, 516158, 10581239, 21162478]

約数ペア:

[(1, 21162478), (2, 10581239), (41, 516158), (82, 258079), (409, 51742), (631, 33538), (818, 25871), (1262, 16769)]