20128438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{2113}}^1$

素因数の和:2559

約数の個数: 16

約数和(自身を含む): 33029136

約数和(自身を除く): 12900698

約数列:

[1, 2, 11, 22, 433, 866, 2113, 4226, 4763, 9526, 23243, 46486, 914929, 1829858, 10064219, 20128438]

約数ペア:

[(1, 20128438), (2, 10064219), (11, 1829858), (22, 914929), (433, 46486), (866, 23243), (2113, 9526), (4226, 4763)]