21949669

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2753}}^1$

素因数の和:2844

約数の個数: 16

約数和(自身を含む): 26967168

約数和(自身を除く): 5017499

約数列:

[1, 7, 17, 67, 119, 469, 1139, 2753, 7973, 19271, 46801, 184451, 327607, 1291157, 3135667, 21949669]

約数ペア:

[(1, 21949669), (7, 3135667), (17, 1291157), (67, 327607), (119, 184451), (469, 46801), (1139, 19271), (2753, 7973)]