21094028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{641}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 39007920

約数和(自身を除く): 17913892

約数列:

[1, 2, 4, 19, 38, 76, 433, 641, 866, 1282, 1732, 2564, 8227, 12179, 16454, 24358, 32908, 48716, 277553, 555106, 1110212, 5273507, 10547014, 21094028]

約数ペア:

[(1, 21094028), (2, 10547014), (4, 5273507), (19, 1110212), (38, 555106), (76, 277553), (433, 48716), (641, 32908), (866, 24358), (1282, 16454), (1732, 12179), (2564, 8227)]