20564564

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{311}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 36830976

約数和(自身を除く): 16266412

約数列:

[1, 2, 4, 61, 122, 244, 271, 311, 542, 622, 1084, 1244, 16531, 18971, 33062, 37942, 66124, 75884, 84281, 168562, 337124, 5141141, 10282282, 20564564]

約数ペア:

[(1, 20564564), (2, 10282282), (4, 5141141), (61, 337124), (122, 168562), (244, 84281), (271, 75884), (311, 66124), (542, 37942), (622, 33062), (1084, 18971), (1244, 16531)]