21042364

素因数分解:

$2^2\times 7^5\times {\mathrm{313}}^1$

素因数の和:352

約数の個数: 36

約数和(自身を含む): 43098384

約数和(自身を除く): 22056020

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 313, 343, 626, 686, 1252, 1372, 2191, 2401, 4382, 4802, 8764, 9604, 15337, 16807, 30674, 33614, 61348, 67228, 107359, 214718, 429436, 751513, 1503026, 3006052, 5260591, 10521182, 21042364]

約数ペア:

[(1, 21042364), (2, 10521182), (4, 5260591), (7, 3006052), (14, 1503026), (28, 751513), (49, 429436), (98, 214718), (196, 107359), (313, 67228), (343, 61348), (626, 33614), (686, 30674), (1252, 16807), (1372, 15337), (2191, 9604), (2401, 8764), (4382, 4802)]