2165553

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 3424512

約数和(自身を除く): 1258959

約数列:

[1, 3, 9, 13, 39, 83, 117, 223, 249, 669, 747, 1079, 2007, 2899, 3237, 8697, 9711, 18509, 26091, 55527, 166581, 240617, 721851, 2165553]

約数ペア:

[(1, 2165553), (3, 721851), (9, 240617), (13, 166581), (39, 55527), (83, 26091), (117, 18509), (223, 9711), (249, 8697), (669, 3237), (747, 2899), (1079, 2007)]