21691376

素因数分解:

$2^4\times 7^1\times {\mathrm{293}}^1\times {\mathrm{661}}^1$

素因数の和:969

約数の個数: 40

約数和(自身を含む): 48267744

約数和(自身を除く): 26576368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 293, 586, 661, 1172, 1322, 2051, 2344, 2644, 4102, 4627, 4688, 5288, 8204, 9254, 10576, 16408, 18508, 32816, 37016, 74032, 193673, 387346, 774692, 1355711, 1549384, 2711422, 3098768, 5422844, 10845688, 21691376]

約数ペア:

[(1, 21691376), (2, 10845688), (4, 5422844), (7, 3098768), (8, 2711422), (14, 1549384), (16, 1355711), (28, 774692), (56, 387346), (112, 193673), (293, 74032), (586, 37016), (661, 32816), (1172, 18508), (1322, 16408), (2051, 10576), (2344, 9254), (2644, 8204), (4102, 5288), (4627, 4688)]