127910727

素因数分解:

$3^2\times 7^2\times {\mathrm{290047}}^1$

素因数の和:290067

約数の個数: 18

約数和(自身を含む): 214925568

約数和(自身を除く): 87014841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 290047, 870141, 2030329, 2610423, 6090987, 14212303, 18272961, 42636909, 127910727]

約数ペア:

[(1, 127910727), (3, 42636909), (7, 18272961), (9, 14212303), (21, 6090987), (49, 2610423), (63, 2030329), (147, 870141), (441, 290047)]