387855188

素因数分解:

$2^2\times 7^2\times {\mathrm{1978853}}^1$

素因数の和:1978871

約数の個数: 18

約数和(自身を含む): 789562746

約数和(自身を除く): 401707558

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1978853, 3957706, 7915412, 13851971, 27703942, 55407884, 96963797, 193927594, 387855188]

約数ペア:

[(1, 387855188), (2, 193927594), (4, 96963797), (7, 55407884), (14, 27703942), (28, 13851971), (49, 7915412), (98, 3957706), (196, 1978853)]