27978849

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 42900000

約数和(自身を除く): 14921151

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 1179, 1249, 2489, 3747, 7467, 11241, 22401, 23731, 71193, 163619, 213579, 490857, 1472571, 3108761, 9326283, 27978849]

約数ペア:

[(1, 27978849), (3, 9326283), (9, 3108761), (19, 1472571), (57, 490857), (131, 213579), (171, 163619), (393, 71193), (1179, 23731), (1249, 22401), (2489, 11241), (3747, 7467)]