80881983

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10973}}^1$

素因数の和:11005

約数の個数: 40

約数和(自身を含む): 148719648

約数和(自身を除く): 67837665

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 7371, 10973, 32919, 76811, 98757, 142649, 230433, 296271, 427947, 691299, 888813, 998543, 1283841, 2073897, 2995629, 3851523, 6221691, 8986887, 11554569, 26960661, 80881983]

約数ペア:

[(1, 80881983), (3, 26960661), (7, 11554569), (9, 8986887), (13, 6221691), (21, 3851523), (27, 2995629), (39, 2073897), (63, 1283841), (81, 998543), (91, 888813), (117, 691299), (189, 427947), (273, 296271), (351, 230433), (567, 142649), (819, 98757), (1053, 76811), (2457, 32919), (7371, 10973)]