16686561639

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1\times {\mathrm{20887}}^1$

素因数の和:21507

約数の個数: 32

約数和(自身を含む): 24881117184

約数和(自身を除く): 8194555545

約数列:

[1, 3, 11, 33, 43, 129, 473, 563, 1419, 1689, 6193, 18579, 20887, 24209, 62661, 72627, 229757, 266299, 689271, 798897, 898141, 2694423, 9879551, 11759381, 29638653, 35278143, 129353191, 388059573, 505653383, 1516960149, 5562187213, 16686561639]

約数ペア:

[(1, 16686561639), (3, 5562187213), (11, 1516960149), (33, 505653383), (43, 388059573), (129, 129353191), (473, 35278143), (563, 29638653), (1419, 11759381), (1689, 9879551), (6193, 2694423), (18579, 898141), (20887, 798897), (24209, 689271), (62661, 266299), (72627, 229757)]