21945854

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12343}}^1$

素因数の和:12479

約数の個数: 16

約数和(自身を含む): 37920768

約数和(自身を除く): 15974914

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 12343, 24686, 86401, 172802, 1567561, 3135122, 10972927, 21945854]

約数ペア:

[(1, 21945854), (2, 10972927), (7, 3135122), (14, 1567561), (127, 172802), (254, 86401), (889, 24686), (1778, 12343)]