25260291

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 44928000

約数和(自身を除く): 19667709

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 133, 141, 171, 329, 399, 423, 449, 893, 987, 1197, 1347, 2679, 2961, 3143, 4041, 6251, 8037, 8531, 9429, 18753, 21103, 25593, 28287, 56259, 59717, 63309, 76779, 147721, 179151, 189927, 400957, 443163, 537453, 1202871, 1329489, 2806699, 3608613, 8420097, 25260291]

約数ペア:

[(1, 25260291), (3, 8420097), (7, 3608613), (9, 2806699), (19, 1329489), (21, 1202871), (47, 537453), (57, 443163), (63, 400957), (133, 189927), (141, 179151), (171, 147721), (329, 76779), (399, 63309), (423, 59717), (449, 56259), (893, 28287), (987, 25593), (1197, 21103), (1347, 18753), (2679, 9429), (2961, 8531), (3143, 8037), (4041, 6251)]