20429703

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3907}}^1$

素因数の和:4003

約数の個数: 24

約数和(自身を含む): 34140288

約数和(自身を除く): 13710585

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3907, 5229, 11721, 27349, 35163, 82047, 246141, 324281, 972843, 2269967, 2918529, 6809901, 20429703]

約数ペア:

[(1, 20429703), (3, 6809901), (7, 2918529), (9, 2269967), (21, 972843), (63, 324281), (83, 246141), (249, 82047), (581, 35163), (747, 27349), (1743, 11721), (3907, 5229)]