21031076

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1109}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 40279680

約数和(自身を除く): 19248604

約数列:

[1, 2, 4, 11, 22, 44, 431, 862, 1109, 1724, 2218, 4436, 4741, 9482, 12199, 18964, 24398, 48796, 477979, 955958, 1911916, 5257769, 10515538, 21031076]

約数ペア:

[(1, 21031076), (2, 10515538), (4, 5257769), (11, 1911916), (22, 955958), (44, 477979), (431, 48796), (862, 24398), (1109, 18964), (1724, 12199), (2218, 9482), (4436, 4741)]