289804473

素因数分解:

$3^6\times 7^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:119

約数の個数: 112

約数和(自身を含む): 542128000

約数和(自身を除く): 252323527

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 61, 63, 81, 133, 147, 171, 183, 189, 243, 343, 399, 427, 441, 513, 549, 567, 729, 931, 1029, 1159, 1197, 1281, 1323, 1539, 1647, 1701, 2793, 2989, 3087, 3477, 3591, 3843, 3969, 4617, 4941, 5103, 6517, 8113, 8379, 8967, 9261, 10431, 10773, 11529, 11907, 13851, 14823, 19551, 20923, 24339, 25137, 26901, 27783, 31293, 32319, 34587, 35721, 44469, 56791, 58653, 62769, 73017, 75411, 80703, 83349, 93879, 96957, 103761, 170373, 175959, 188307, 219051, 226233, 242109, 250047, 281637, 311283, 397537, 511119, 527877, 564921, 657153, 678699, 726327, 844911, 1192611, 1533357, 1583631, 1694763, 1971459, 2178981, 3577833, 4600071, 4750893, 5084289, 5914377, 10733499, 13800213, 15252867, 32200497, 41400639, 96601491, 289804473]

約数ペア:

[(1, 289804473), (3, 96601491), (7, 41400639), (9, 32200497), (19, 15252867), (21, 13800213), (27, 10733499), (49, 5914377), (57, 5084289), (61, 4750893), (63, 4600071), (81, 3577833), (133, 2178981), (147, 1971459), (171, 1694763), (183, 1583631), (189, 1533357), (243, 1192611), (343, 844911), (399, 726327), (427, 678699), (441, 657153), (513, 564921), (549, 527877), (567, 511119), (729, 397537), (931, 311283), (1029, 281637), (1159, 250047), (1197, 242109), (1281, 226233), (1323, 219051), (1539, 188307), (1647, 175959), (1701, 170373), (2793, 103761), (2989, 96957), (3087, 93879), (3477, 83349), (3591, 80703), (3843, 75411), (3969, 73017), (4617, 62769), (4941, 58653), (5103, 56791), (6517, 44469), (8113, 35721), (8379, 34587), (8967, 32319), (9261, 31293), (10431, 27783), (10773, 26901), (11529, 25137), (11907, 24339), (13851, 20923), (14823, 19551)]