21140692

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6469}}^1$

素因数の和:6535

約数の個数: 24

約数和(自身を含む): 39855200

約数和(自身を除く): 18714508

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6469, 12938, 25876, 122911, 245822, 278167, 491644, 556334, 1112668, 5285173, 10570346, 21140692]

約数ペア:

[(1, 21140692), (2, 10570346), (4, 5285173), (19, 1112668), (38, 556334), (43, 491644), (76, 278167), (86, 245822), (172, 122911), (817, 25876), (1634, 12938), (3268, 6469)]