255307921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 312923520

約数和(自身を除く): 57615599

約数列:

[1, 11, 17, 19, 181, 187, 209, 323, 397, 1991, 3077, 3439, 3553, 4367, 6749, 7543, 33847, 37829, 58463, 71857, 74239, 82973, 128231, 643093, 790427, 1221569, 1365283, 1410541, 13437259, 15018113, 23209811, 255307921]

約数ペア:

[(1, 255307921), (11, 23209811), (17, 15018113), (19, 13437259), (181, 1410541), (187, 1365283), (209, 1221569), (323, 790427), (397, 643093), (1991, 128231), (3077, 82973), (3439, 74239), (3553, 71857), (4367, 58463), (6749, 37829), (7543, 33847)]