19903401

素因数分解:

$3^5\times 7^1\times {\mathrm{11701}}^1$

素因数の和:11723

約数の個数: 24

約数和(自身を含む): 34076224

約数和(自身を除く): 14172823

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11701, 35103, 81907, 105309, 245721, 315927, 737163, 947781, 2211489, 2843343, 6634467, 19903401]

約数ペア:

[(1, 19903401), (3, 6634467), (7, 2843343), (9, 2211489), (21, 947781), (27, 737163), (63, 315927), (81, 245721), (189, 105309), (243, 81907), (567, 35103), (1701, 11701)]