19956537

素因数分解:

$3^4\times {\mathrm{433}}^1\times {\mathrm{569}}^1$

素因数の和:1014

約数の個数: 20

約数和(自身を含む): 29932980

約数和(自身を除く): 9976443

約数列:

[1, 3, 9, 27, 81, 433, 569, 1299, 1707, 3897, 5121, 11691, 15363, 35073, 46089, 246377, 739131, 2217393, 6652179, 19956537]

約数ペア:

[(1, 19956537), (3, 6652179), (9, 2217393), (27, 739131), (81, 246377), (433, 46089), (569, 35073), (1299, 15363), (1707, 11691), (3897, 5121)]