21336478

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{1627}}^1$

素因数の和:1791

約数の個数: 16

約数和(自身を含む): 32820480

約数和(自身を除く): 11484002

約数列:

[1, 2, 79, 83, 158, 166, 1627, 3254, 6557, 13114, 128533, 135041, 257066, 270082, 10668239, 21336478]

約数ペア:

[(1, 21336478), (2, 10668239), (79, 270082), (83, 257066), (158, 135041), (166, 128533), (1627, 13114), (3254, 6557)]