21061878

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{206489}}^1$

素因数の和:206511

約数の個数: 16

約数和(自身を含む): 44601840

約数和(自身を除く): 23539962

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 206489, 412978, 619467, 1238934, 3510313, 7020626, 10530939, 21061878]

約数ペア:

[(1, 21061878), (2, 10530939), (3, 7020626), (6, 3510313), (17, 1238934), (34, 619467), (51, 412978), (102, 206489)]