128217873

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{141991}}^1$

素因数の和:142044

約数の個数: 16

約数和(自身を含む): 199924736

約数和(自身を除く): 71706863

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 141991, 425973, 993937, 2981811, 6105613, 18316839, 42739291, 128217873]

約数ペア:

[(1, 128217873), (3, 42739291), (7, 18316839), (21, 6105613), (43, 2981811), (129, 993937), (301, 425973), (903, 141991)]