20123942

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2417}}^1$

素因数の和:2623

約数の個数: 16

約数和(自身を含む): 31685472

約数和(自身を除く): 11561530

約数列:

[1, 2, 23, 46, 181, 362, 2417, 4163, 4834, 8326, 55591, 111182, 437477, 874954, 10061971, 20123942]

約数ペア:

[(1, 20123942), (2, 10061971), (23, 874954), (46, 437477), (181, 111182), (362, 55591), (2417, 8326), (4163, 4834)]