20811416

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{2707}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 40335660

約数和(自身を除く): 19524244

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 961, 1922, 2707, 3844, 5414, 7688, 10828, 21656, 83917, 167834, 335668, 671336, 2601427, 5202854, 10405708, 20811416]

約数ペア:

[(1, 20811416), (2, 10405708), (4, 5202854), (8, 2601427), (31, 671336), (62, 335668), (124, 167834), (248, 83917), (961, 21656), (1922, 10828), (2707, 7688), (3844, 5414)]