21561554

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{49681}}^1$

素因数の和:49721

約数の個数: 16

約数和(自身を含む): 38155776

約数和(自身を除く): 16594222

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 49681, 99362, 347767, 695534, 1540111, 3080222, 10780777, 21561554]

約数ペア:

[(1, 21561554), (2, 10780777), (7, 3080222), (14, 1540111), (31, 695534), (62, 347767), (217, 99362), (434, 49681)]