20179478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12919}}^1$

素因数の和:13003

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 13309162

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12919, 25838, 142109, 284218, 917249, 1834498, 10089739, 20179478]

約数ペア:

[(1, 20179478), (2, 10089739), (11, 1834498), (22, 917249), (71, 284218), (142, 142109), (781, 25838), (1562, 12919)]