25279443

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 44928000

約数和(自身を除く): 19648557

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 343, 399, 431, 441, 931, 1029, 1197, 1293, 2793, 3017, 3087, 3879, 6517, 8189, 8379, 9051, 19551, 21119, 24567, 27153, 57323, 58653, 63357, 73701, 147833, 171969, 190071, 401261, 443499, 515907, 1203783, 1330497, 2808827, 3611349, 8426481, 25279443]

約数ペア:

[(1, 25279443), (3, 8426481), (7, 3611349), (9, 2808827), (19, 1330497), (21, 1203783), (49, 515907), (57, 443499), (63, 401261), (133, 190071), (147, 171969), (171, 147833), (343, 73701), (399, 63357), (431, 58653), (441, 57323), (931, 27153), (1029, 24567), (1197, 21119), (1293, 19551), (2793, 9051), (3017, 8379), (3087, 8189), (3879, 6517)]