19720526

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{45439}}^1$

素因数の和:45479

約数の個数: 16

約数和(自身を含む): 34897920

約数和(自身を除く): 15177394

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 45439, 90878, 318073, 636146, 1408609, 2817218, 9860263, 19720526]

約数ペア:

[(1, 19720526), (2, 9860263), (7, 2817218), (14, 1408609), (31, 636146), (62, 318073), (217, 90878), (434, 45439)]