20778884

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{8941}}^1$

素因数の和:9035

約数の個数: 24

約数和(自身を含む): 42063168

約数和(自身を除く): 21284284

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 8941, 17882, 35764, 62587, 125174, 250348, 742103, 1484206, 2968412, 5194721, 10389442, 20778884]

約数ペア:

[(1, 20778884), (2, 10389442), (4, 5194721), (7, 2968412), (14, 1484206), (28, 742103), (83, 250348), (166, 125174), (332, 62587), (581, 35764), (1162, 17882), (2324, 8941)]