18700978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21397}}^1$

素因数の和:21441

約数の個数: 16

約数和(自身を含む): 30813120

約数和(自身を除く): 12112142

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 21397, 42794, 406543, 492131, 813086, 984262, 9350489, 18700978]

約数ペア:

[(1, 18700978), (2, 9350489), (19, 984262), (23, 813086), (38, 492131), (46, 406543), (437, 42794), (874, 21397)]