9878561

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 12640320

約数和(自身を除く): 2761759

約数列:

[1, 7, 11, 77, 107, 109, 121, 749, 763, 847, 1177, 1199, 8239, 8393, 11663, 12947, 13189, 81641, 90629, 92323, 128293, 898051, 1411223, 9878561]

約数ペア:

[(1, 9878561), (7, 1411223), (11, 898051), (77, 128293), (107, 92323), (109, 90629), (121, 81641), (749, 13189), (763, 12947), (847, 11663), (1177, 8393), (1199, 8239)]