12890845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{811}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 17948448

約数和(自身を除く): 5057603

約数列:

[1, 5, 11, 17, 55, 85, 187, 289, 811, 935, 1445, 3179, 4055, 8921, 13787, 15895, 44605, 68935, 151657, 234379, 758285, 1171895, 2578169, 12890845]

約数ペア:

[(1, 12890845), (5, 2578169), (11, 1171895), (17, 758285), (55, 234379), (85, 151657), (187, 68935), (289, 44605), (811, 15895), (935, 13787), (1445, 8921), (3179, 4055)]