18604971

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:206

約数の個数: 80

約数和(自身を含む): 36706560

約数和(自身を除く): 18101589

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 81, 99, 133, 157, 171, 189, 209, 231, 297, 399, 471, 513, 567, 627, 693, 891, 1099, 1197, 1413, 1463, 1539, 1727, 1881, 2079, 2983, 3297, 3591, 4239, 4389, 5181, 5643, 6237, 8949, 9891, 10773, 12089, 12717, 13167, 15543, 16929, 20881, 26847, 29673, 32813, 36267, 39501, 46629, 62643, 80541, 89019, 98439, 108801, 118503, 139887, 187929, 229691, 241623, 295317, 326403, 563787, 689073, 885951, 979209, 1691361, 2067219, 2657853, 6201657, 18604971]

約数ペア:

[(1, 18604971), (3, 6201657), (7, 2657853), (9, 2067219), (11, 1691361), (19, 979209), (21, 885951), (27, 689073), (33, 563787), (57, 326403), (63, 295317), (77, 241623), (81, 229691), (99, 187929), (133, 139887), (157, 118503), (171, 108801), (189, 98439), (209, 89019), (231, 80541), (297, 62643), (399, 46629), (471, 39501), (513, 36267), (567, 32813), (627, 29673), (693, 26847), (891, 20881), (1099, 16929), (1197, 15543), (1413, 13167), (1463, 12717), (1539, 12089), (1727, 10773), (1881, 9891), (2079, 8949), (2983, 6237), (3297, 5643), (3591, 5181), (4239, 4389)]