28263729

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 41267232

約数和(自身を除く): 13003503

約数列:

[1, 3, 13, 39, 107, 169, 321, 507, 521, 1391, 1563, 4173, 6773, 18083, 20319, 54249, 55747, 88049, 167241, 264147, 724711, 2174133, 9421243, 28263729]

約数ペア:

[(1, 28263729), (3, 9421243), (13, 2174133), (39, 724711), (107, 264147), (169, 167241), (321, 88049), (507, 55747), (521, 54249), (1391, 20319), (1563, 18083), (4173, 6773)]