20547135

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1317

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 23689665

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 945, 1071, 1279, 1785, 2295, 3213, 3837, 5355, 6395, 8953, 11511, 16065, 19185, 21743, 26859, 34533, 44765, 57555, 65229, 80577, 108715, 134295, 152201, 172665, 195687, 241731, 326145, 402885, 456603, 587061, 761005, 978435, 1208655, 1369809, 2283015, 2935305, 4109427, 6849045, 20547135]

約数ペア:

[(1, 20547135), (3, 6849045), (5, 4109427), (7, 2935305), (9, 2283015), (15, 1369809), (17, 1208655), (21, 978435), (27, 761005), (35, 587061), (45, 456603), (51, 402885), (63, 326145), (85, 241731), (105, 195687), (119, 172665), (135, 152201), (153, 134295), (189, 108715), (255, 80577), (315, 65229), (357, 57555), (459, 44765), (595, 34533), (765, 26859), (945, 21743), (1071, 19185), (1279, 16065), (1785, 11511), (2295, 8953), (3213, 6395), (3837, 5355)]