25278561

素因数分解:

$3^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 48301344

約数和(自身を除く): 23022783

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 193, 231, 243, 297, 441, 539, 567, 579, 693, 891, 1323, 1351, 1617, 1701, 1737, 2079, 2123, 2673, 3969, 4053, 4851, 5211, 6237, 6369, 9457, 11907, 12159, 14553, 14861, 15633, 18711, 19107, 28371, 36477, 43659, 44583, 46899, 57321, 85113, 104027, 109431, 130977, 133749, 171963, 255339, 312081, 328293, 401247, 515889, 766017, 936243, 1203741, 2298051, 2808729, 3611223, 8426187, 25278561]

約数ペア:

[(1, 25278561), (3, 8426187), (7, 3611223), (9, 2808729), (11, 2298051), (21, 1203741), (27, 936243), (33, 766017), (49, 515889), (63, 401247), (77, 328293), (81, 312081), (99, 255339), (147, 171963), (189, 133749), (193, 130977), (231, 109431), (243, 104027), (297, 85113), (441, 57321), (539, 46899), (567, 44583), (579, 43659), (693, 36477), (891, 28371), (1323, 19107), (1351, 18711), (1617, 15633), (1701, 14861), (1737, 14553), (2079, 12159), (2123, 11907), (2673, 9457), (3969, 6369), (4053, 6237), (4851, 5211)]