20959547

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{463}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 24944640

約数和(自身を除く): 3985093

約数列:

[1, 7, 29, 203, 223, 463, 1561, 3241, 6467, 13427, 45269, 93989, 103249, 722743, 2994221, 20959547]

約数ペア:

[(1, 20959547), (7, 2994221), (29, 722743), (203, 103249), (223, 93989), (463, 45269), (1561, 13427), (3241, 6467)]