217157031

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1733}}^1$

素因数の和:1782

約数の個数: 80

約数和(自身を含む): 422985024

約数和(自身を除く): 205827993

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 81, 91, 117, 119, 153, 189, 221, 273, 351, 357, 459, 567, 663, 819, 1053, 1071, 1377, 1547, 1733, 1989, 2457, 3213, 4641, 5199, 5967, 7371, 9639, 12131, 13923, 15597, 17901, 22529, 29461, 36393, 41769, 46791, 67587, 88383, 109179, 125307, 140373, 157703, 202761, 206227, 265149, 327537, 382993, 473109, 608283, 618681, 795447, 982611, 1148979, 1419327, 1824849, 1856043, 2386341, 2680951, 3446937, 4257981, 5568129, 8042853, 10340811, 12773943, 16704387, 24128559, 31022433, 72385677, 217157031]

約数ペア:

[(1, 217157031), (3, 72385677), (7, 31022433), (9, 24128559), (13, 16704387), (17, 12773943), (21, 10340811), (27, 8042853), (39, 5568129), (51, 4257981), (63, 3446937), (81, 2680951), (91, 2386341), (117, 1856043), (119, 1824849), (153, 1419327), (189, 1148979), (221, 982611), (273, 795447), (351, 618681), (357, 608283), (459, 473109), (567, 382993), (663, 327537), (819, 265149), (1053, 206227), (1071, 202761), (1377, 157703), (1547, 140373), (1733, 125307), (1989, 109179), (2457, 88383), (3213, 67587), (4641, 46791), (5199, 41769), (5967, 36393), (7371, 29461), (9639, 22529), (12131, 17901), (13923, 15597)]