21163954

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{36871}}^1$

素因数の和:36921

約数の個数: 16

約数和(自身を含む): 37166976

約数和(自身を除く): 16003022

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 36871, 73742, 258097, 516194, 1511711, 3023422, 10581977, 21163954]

約数ペア:

[(1, 21163954), (2, 10581977), (7, 3023422), (14, 1511711), (41, 516194), (82, 258097), (287, 73742), (574, 36871)]