21863212

素因数分解:

$2^2\times 7^2\times {\mathrm{331}}^1\times {\mathrm{337}}^1$

素因数の和:686

約数の個数: 36

約数和(自身を含む): 44774184

約数和(自身を除く): 22910972

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 331, 337, 662, 674, 1324, 1348, 2317, 2359, 4634, 4718, 9268, 9436, 16219, 16513, 32438, 33026, 64876, 66052, 111547, 223094, 446188, 780829, 1561658, 3123316, 5465803, 10931606, 21863212]

約数ペア:

[(1, 21863212), (2, 10931606), (4, 5465803), (7, 3123316), (14, 1561658), (28, 780829), (49, 446188), (98, 223094), (196, 111547), (331, 66052), (337, 64876), (662, 33026), (674, 32438), (1324, 16513), (1348, 16219), (2317, 9436), (2359, 9268), (4634, 4718)]