18172917

素因数分解:

$3^4\times 7^1\times {\mathrm{32051}}^1$

素因数の和:32070

約数の個数: 20

約数和(自身を含む): 31026336

約数和(自身を除く): 12853419

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 32051, 96153, 224357, 288459, 673071, 865377, 2019213, 2596131, 6057639, 18172917]

約数ペア:

[(1, 18172917), (3, 6057639), (7, 2596131), (9, 2019213), (21, 865377), (27, 673071), (63, 288459), (81, 224357), (189, 96153), (567, 32051)]