25576551

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 27258777

約数列:

[1, 3, 7, 9, 11, 13, 17, 21, 33, 39, 51, 63, 77, 91, 99, 117, 119, 143, 153, 167, 187, 221, 231, 273, 357, 429, 501, 561, 663, 693, 819, 1001, 1071, 1169, 1287, 1309, 1503, 1547, 1683, 1837, 1989, 2171, 2431, 2839, 3003, 3507, 3927, 4641, 5511, 6513, 7293, 8517, 9009, 10521, 11781, 12859, 13923, 15197, 16533, 17017, 19539, 19873, 21879, 23881, 25551, 31229, 36907, 38577, 45591, 51051, 59619, 71643, 93687, 110721, 115731, 136773, 153153, 167167, 178857, 214929, 218603, 258349, 281061, 332163, 405977, 501501, 655809, 775047, 1217931, 1504503, 1967427, 2325141, 2841839, 3653793, 8525517, 25576551]

約数ペア:

[(1, 25576551), (3, 8525517), (7, 3653793), (9, 2841839), (11, 2325141), (13, 1967427), (17, 1504503), (21, 1217931), (33, 775047), (39, 655809), (51, 501501), (63, 405977), (77, 332163), (91, 281061), (99, 258349), (117, 218603), (119, 214929), (143, 178857), (153, 167167), (167, 153153), (187, 136773), (221, 115731), (231, 110721), (273, 93687), (357, 71643), (429, 59619), (501, 51051), (561, 45591), (663, 38577), (693, 36907), (819, 31229), (1001, 25551), (1071, 23881), (1169, 21879), (1287, 19873), (1309, 19539), (1503, 17017), (1547, 16533), (1683, 15197), (1837, 13923), (1989, 12859), (2171, 11781), (2431, 10521), (2839, 9009), (3003, 8517), (3507, 7293), (3927, 6513), (4641, 5511)]