21528716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{1291}}^1$

素因数の和:1685

約数の個数: 24

約数和(自身を含む): 41240640

約数和(自身を除く): 19711924

約数列:

[1, 2, 4, 11, 22, 44, 379, 758, 1291, 1516, 2582, 4169, 5164, 8338, 14201, 16676, 28402, 56804, 489289, 978578, 1957156, 5382179, 10764358, 21528716]

約数ペア:

[(1, 21528716), (2, 10764358), (4, 5382179), (11, 1957156), (22, 978578), (44, 489289), (379, 56804), (758, 28402), (1291, 16676), (1516, 14201), (2582, 8338), (4169, 5164)]