20581606

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2689}}^1$

素因数の和:2823

約数の個数: 16

約数和(自身を含む): 31957200

約数和(自身を除く): 11375594

約数列:

[1, 2, 43, 86, 89, 178, 2689, 3827, 5378, 7654, 115627, 231254, 239321, 478642, 10290803, 20581606]

約数ペア:

[(1, 20581606), (2, 10290803), (43, 478642), (86, 239321), (89, 231254), (178, 115627), (2689, 7654), (3827, 5378)]