20489714

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77029}}^1$

素因数の和:77057

約数の個数: 16

約数和(自身を含む): 36974400

約数和(自身を除く): 16484686

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77029, 154058, 539203, 1078406, 1463551, 2927102, 10244857, 20489714]

約数ペア:

[(1, 20489714), (2, 10244857), (7, 2927102), (14, 1463551), (19, 1078406), (38, 539203), (133, 154058), (266, 77029)]