25377009

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 14666511

約数列:

[1, 3, 7, 21, 43, 129, 157, 179, 301, 471, 537, 903, 1099, 1253, 3297, 3759, 6751, 7697, 20253, 23091, 28103, 47257, 53879, 84309, 141771, 161637, 196721, 590163, 1208429, 3625287, 8459003, 25377009]

約数ペア:

[(1, 25377009), (3, 8459003), (7, 3625287), (21, 1208429), (43, 590163), (129, 196721), (157, 161637), (179, 141771), (301, 84309), (471, 53879), (537, 47257), (903, 28103), (1099, 23091), (1253, 20253), (3297, 7697), (3759, 6751)]