18991606

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2281}}^1$

素因数の和:2487

約数の個数: 16

約数和(自身を含む): 29903328

約数和(自身を除く): 10911722

約数列:

[1, 2, 23, 46, 181, 362, 2281, 4163, 4562, 8326, 52463, 104926, 412861, 825722, 9495803, 18991606]

約数ペア:

[(1, 18991606), (2, 9495803), (23, 825722), (46, 412861), (181, 104926), (362, 52463), (2281, 8326), (4163, 4562)]