25287471

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 41765328

約数和(自身を除く): 16477857

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 101, 281, 297, 303, 843, 891, 909, 1111, 2529, 2727, 3091, 3333, 7587, 8181, 9273, 9999, 22761, 27819, 28381, 29997, 83457, 85143, 89991, 250371, 255429, 312191, 766287, 936573, 2298861, 2809719, 8429157, 25287471]

約数ペア:

[(1, 25287471), (3, 8429157), (9, 2809719), (11, 2298861), (27, 936573), (33, 766287), (81, 312191), (99, 255429), (101, 250371), (281, 89991), (297, 85143), (303, 83457), (843, 29997), (891, 28381), (909, 27819), (1111, 22761), (2529, 9999), (2727, 9273), (3091, 8181), (3333, 7587)]