139210911

素因数分解:

$3^2\times 7^2\times {\mathrm{315671}}^1$

素因数の和:315691

約数の個数: 18

約数和(自身を含む): 233912952

約数和(自身を除く): 94702041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 315671, 947013, 2209697, 2841039, 6629091, 15467879, 19887273, 46403637, 139210911]

約数ペア:

[(1, 139210911), (3, 46403637), (7, 19887273), (9, 15467879), (21, 6629091), (49, 2841039), (63, 2209697), (147, 947013), (441, 315671)]