18988846

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{8783}}^1$

素因数の和:8855

約数の個数: 16

約数和(自身を含む): 30357504

約数和(自身を除く): 11368658

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 8783, 17566, 202009, 404018, 412801, 825602, 9494423, 18988846]

約数ペア:

[(1, 18988846), (2, 9494423), (23, 825602), (46, 412801), (47, 404018), (94, 202009), (1081, 17566), (2162, 8783)]