21424436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5471}}^1$

素因数の和:5575

約数の個数: 24

約数和(自身を含む): 41368320

約数和(自身を除く): 19943884

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5471, 10942, 21884, 60181, 120362, 240724, 486919, 973838, 1947676, 5356109, 10712218, 21424436]

約数ペア:

[(1, 21424436), (2, 10712218), (4, 5356109), (11, 1947676), (22, 973838), (44, 486919), (89, 240724), (178, 120362), (356, 60181), (979, 21884), (1958, 10942), (3916, 5471)]