9876988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{20407}}^1$

素因数の和:20433

約数の個数: 18

約数和(自身を含む): 18999848

約数和(自身を除く): 9122860

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 20407, 40814, 81628, 224477, 448954, 897908, 2469247, 4938494, 9876988]

約数ペア:

[(1, 9876988), (2, 4938494), (4, 2469247), (11, 897908), (22, 448954), (44, 224477), (121, 81628), (242, 40814), (484, 20407)]