19659418

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1217}}^1$

素因数の和:1457

約数の個数: 16

約数和(自身を含む): 30386664

約数和(自身を除く): 10727246

約数列:

[1, 2, 41, 82, 197, 394, 1217, 2434, 8077, 16154, 49897, 99794, 239749, 479498, 9829709, 19659418]

約数ペア:

[(1, 19659418), (2, 9829709), (41, 479498), (82, 239749), (197, 99794), (394, 49897), (1217, 16154), (2434, 8077)]