1256556879

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{20681}}^1$

素因数の和:20887

約数の個数: 24

約数和(自身を含む): 1869156432

約数和(自身を除く): 612599553

約数列:

[1, 3, 9, 43, 129, 157, 387, 471, 1413, 6751, 20253, 20681, 60759, 62043, 186129, 889283, 2667849, 3246917, 8003547, 9740751, 29222253, 139617431, 418852293, 1256556879]

約数ペア:

[(1, 1256556879), (3, 418852293), (9, 139617431), (43, 29222253), (129, 9740751), (157, 8003547), (387, 3246917), (471, 2667849), (1413, 889283), (6751, 186129), (20253, 62043), (20681, 60759)]