858872721

素因数分解:

$3^1\times 7^1\times {\mathrm{7043}}^1\times {\mathrm{5807}}^1$

素因数の和:12860

約数の個数: 16

約数和(自身を含む): 1309169664

約数和(自身を除く): 450296943

約数列:

[1, 3, 7, 21, 5807, 7043, 17421, 21129, 40649, 49301, 121947, 147903, 40898701, 122696103, 286290907, 858872721]

約数ペア:

[(1, 858872721), (3, 286290907), (7, 122696103), (21, 40898701), (5807, 147903), (7043, 121947), (17421, 49301), (21129, 40649)]