28142163

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12073}}^1$

素因数の和:12123

約数の個数: 24

約数和(自身を含む): 47716448

約数和(自身を除く): 19574285

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12073, 36219, 84511, 108657, 253533, 446701, 760599, 1340103, 3126907, 4020309, 9380721, 28142163]

約数ペア:

[(1, 28142163), (3, 9380721), (7, 4020309), (9, 3126907), (21, 1340103), (37, 760599), (63, 446701), (111, 253533), (259, 108657), (333, 84511), (777, 36219), (2331, 12073)]