21381962

素因数分解:

$2^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{18401}}^1$

素因数の和:18493

約数の個数: 16

約数和(自身を含む): 37098432

約数和(自身を除く): 15716470

約数列:

[1, 2, 7, 14, 83, 166, 581, 1162, 18401, 36802, 128807, 257614, 1527283, 3054566, 10690981, 21381962]

約数ペア:

[(1, 21381962), (2, 10690981), (7, 3054566), (14, 1527283), (83, 257614), (166, 128807), (581, 36802), (1162, 18401)]