1388395078

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3199067}}^1$

素因数の和:3199107

約数の個数: 16

約数和(自身を含む): 2456884224

約数和(自身を除く): 1068489146

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 3199067, 6398134, 22393469, 44786938, 99171077, 198342154, 694197539, 1388395078]

約数ペア:

[(1, 1388395078), (2, 694197539), (7, 198342154), (14, 99171077), (31, 44786938), (62, 22393469), (217, 6398134), (434, 3199067)]