21123388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{36929}}^1$

素因数の和:36957

約数の個数: 24

約数和(自身を含む): 43429680

約数和(自身を除く): 22306292

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 36929, 73858, 147716, 406219, 480077, 812438, 960154, 1624876, 1920308, 5280847, 10561694, 21123388]

約数ペア:

[(1, 21123388), (2, 10561694), (4, 5280847), (11, 1920308), (13, 1624876), (22, 960154), (26, 812438), (44, 480077), (52, 406219), (143, 147716), (286, 73858), (572, 36929)]