20158028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{19919}}^1$

素因数の和:19957

約数の個数: 24

約数和(自身を含む): 40158720

約数和(自身を除く): 20000692

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 19919, 39838, 79676, 219109, 438218, 458137, 876436, 916274, 1832548, 5039507, 10079014, 20158028]

約数ペア:

[(1, 20158028), (2, 10079014), (4, 5039507), (11, 1832548), (22, 916274), (23, 876436), (44, 458137), (46, 438218), (92, 219109), (253, 79676), (506, 39838), (1012, 19919)]