20051812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{1291}}^1$

素因数の和:1659

約数の個数: 24

約数和(自身を含む): 38418912

約数和(自身を除く): 18367100

約数列:

[1, 2, 4, 11, 22, 44, 353, 706, 1291, 1412, 2582, 3883, 5164, 7766, 14201, 15532, 28402, 56804, 455723, 911446, 1822892, 5012953, 10025906, 20051812]

約数ペア:

[(1, 20051812), (2, 10025906), (4, 5012953), (11, 1822892), (22, 911446), (44, 455723), (353, 56804), (706, 28402), (1291, 15532), (1412, 14201), (2582, 7766), (3883, 5164)]