21132028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2753}}^1$

素因数の和:2877

約数の個数: 24

約数和(自身を含む): 39327120

約数和(自身を除く): 18195092

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2753, 3838, 5506, 7676, 11012, 52307, 104614, 209228, 278053, 556106, 1112212, 5283007, 10566014, 21132028]

約数ペア:

[(1, 21132028), (2, 10566014), (4, 5283007), (19, 1112212), (38, 556106), (76, 278053), (101, 209228), (202, 104614), (404, 52307), (1919, 11012), (2753, 7676), (3838, 5506)]