550557

素因数分解:

$3^4\times 7^1\times {\mathrm{971}}^1$

素因数の和:990

約数の個数: 20

約数和(自身を含む): 940896

約数和(自身を除く): 390339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 971, 2913, 6797, 8739, 20391, 26217, 61173, 78651, 183519, 550557]

約数ペア:

[(1, 550557), (3, 183519), (7, 78651), (9, 61173), (21, 26217), (27, 20391), (63, 8739), (81, 6797), (189, 2913), (567, 971)]