19281249

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{739}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 30168320

約数和(自身を除く): 10887071

約数列:

[1, 3, 9, 13, 39, 117, 223, 669, 739, 2007, 2217, 2899, 6651, 8697, 9607, 26091, 28821, 86463, 164797, 494391, 1483173, 2142361, 6427083, 19281249]

約数ペア:

[(1, 19281249), (3, 6427083), (9, 2142361), (13, 1483173), (39, 494391), (117, 164797), (223, 86463), (669, 28821), (739, 26091), (2007, 9607), (2217, 8697), (2899, 6651)]