18741159

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 10611801

約数列:

[1, 3, 9, 23, 27, 69, 103, 207, 293, 309, 621, 879, 927, 2369, 2637, 2781, 6739, 7107, 7911, 20217, 21321, 30179, 60651, 63963, 90537, 181953, 271611, 694117, 814833, 2082351, 6247053, 18741159]

約数ペア:

[(1, 18741159), (3, 6247053), (9, 2082351), (23, 814833), (27, 694117), (69, 271611), (103, 181953), (207, 90537), (293, 63963), (309, 60651), (621, 30179), (879, 21321), (927, 20217), (2369, 7911), (2637, 7107), (2781, 6739)]