21084964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7211}}^1$

素因数の和:7275

約数の個数: 24

約数和(自身を含む): 39983328

約数和(自身を除く): 18898364

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 7211, 14422, 28844, 122587, 245174, 310073, 490348, 620146, 1240292, 5271241, 10542482, 21084964]

約数ペア:

[(1, 21084964), (2, 10542482), (4, 5271241), (17, 1240292), (34, 620146), (43, 490348), (68, 310073), (86, 245174), (172, 122587), (731, 28844), (1462, 14422), (2924, 7211)]