21498693

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8969}}^1$

素因数の和:9036

約数の個数: 16

約数和(自身を含む): 31000320

約数和(自身を除く): 9501627

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8969, 26907, 152473, 421543, 457419, 1264629, 7166231, 21498693]

約数ペア:

[(1, 21498693), (3, 7166231), (17, 1264629), (47, 457419), (51, 421543), (141, 152473), (799, 26907), (2397, 8969)]