21494668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9613}}^1$

素因数の和:9673

約数の個数: 24

約数和(自身を含む): 41455568

約数和(自身を除く): 19960900

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9613, 19226, 38452, 124969, 249938, 413359, 499876, 826718, 1653436, 5373667, 10747334, 21494668]

約数ペア:

[(1, 21494668), (2, 10747334), (4, 5373667), (13, 1653436), (26, 826718), (43, 499876), (52, 413359), (86, 249938), (172, 124969), (559, 38452), (1118, 19226), (2236, 9613)]