28252287

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1801}}^1$

素因数の和:1900

約数の個数: 32

約数和(自身を含む): 48437760

約数和(自身を除く): 20185473

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 1743, 1801, 2241, 5229, 5403, 12607, 15687, 16209, 37821, 48627, 113463, 149483, 340389, 448449, 1046381, 1345347, 3139143, 4036041, 9417429, 28252287]

約数ペア:

[(1, 28252287), (3, 9417429), (7, 4036041), (9, 3139143), (21, 1345347), (27, 1046381), (63, 448449), (83, 340389), (189, 149483), (249, 113463), (581, 48627), (747, 37821), (1743, 16209), (1801, 15687), (2241, 12607), (5229, 5403)]