28737891

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{35089}}^1$

素因数の和:35115

約数の個数: 24

約数和(自身を含む): 51091040

約数和(自身を除く): 22353149

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 35089, 105267, 245623, 315801, 456157, 736869, 1368471, 2210607, 3193099, 4105413, 9579297, 28737891]

約数ペア:

[(1, 28737891), (3, 9579297), (7, 4105413), (9, 3193099), (13, 2210607), (21, 1368471), (39, 736869), (63, 456157), (91, 315801), (117, 245623), (273, 105267), (819, 35089)]