2912473221

素因数分解:

$3^1\times 7^2\times {\mathrm{19812743}}^1$

素因数の和:19812760

約数の個数: 12

約数和(自身を含む): 4517305632

約数和(自身を除く): 1604832411

約数列:

[1, 3, 7, 21, 49, 147, 19812743, 59438229, 138689201, 416067603, 970824407, 2912473221]

約数ペア:

[(1, 2912473221), (3, 970824407), (7, 416067603), (21, 138689201), (49, 59438229), (147, 19812743)]