25213923

素因数分解:

$3^{10}\times 7^1\times {\mathrm{61}}^1$

素因数の和:98

約数の個数: 44

約数和(自身を含む): 43932208

約数和(自身を除く): 18718285

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 243, 427, 549, 567, 729, 1281, 1647, 1701, 2187, 3843, 4941, 5103, 6561, 11529, 14823, 15309, 19683, 34587, 44469, 45927, 59049, 103761, 133407, 137781, 311283, 400221, 413343, 933849, 1200663, 2801547, 3601989, 8404641, 25213923]

約数ペア:

[(1, 25213923), (3, 8404641), (7, 3601989), (9, 2801547), (21, 1200663), (27, 933849), (61, 413343), (63, 400221), (81, 311283), (183, 137781), (189, 133407), (243, 103761), (427, 59049), (549, 45927), (567, 44469), (729, 34587), (1281, 19683), (1647, 15309), (1701, 14823), (2187, 11529), (3843, 6561), (4941, 5103)]