8991988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2273}}^1$

素因数の和:2343

約数の個数: 24

約数和(自身を含む): 16809408

約数和(自身を除く): 7817420

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 2273, 3956, 4546, 9092, 52279, 97739, 104558, 195478, 209116, 390956, 2247997, 4495994, 8991988]

約数ペア:

[(1, 8991988), (2, 4495994), (4, 2247997), (23, 390956), (43, 209116), (46, 195478), (86, 104558), (92, 97739), (172, 52279), (989, 9092), (1978, 4546), (2273, 3956)]