207821943

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 379146240

約数和(自身を除く): 171324297

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 101, 133, 171, 189, 191, 303, 399, 513, 567, 573, 707, 909, 1197, 1337, 1539, 1719, 1919, 2121, 2727, 3591, 3629, 4011, 5157, 5757, 6363, 8181, 10773, 10887, 12033, 13433, 15471, 17271, 19089, 19291, 25403, 32661, 36099, 40299, 51813, 57267, 57873, 76209, 97983, 108297, 120897, 135037, 155439, 173619, 228627, 293949, 362691, 366529, 405111, 520857, 685881, 1088073, 1099587, 1215333, 1562571, 2057643, 2565703, 3298761, 3645999, 7697109, 9896283, 10937997, 23091327, 29688849, 69273981, 207821943]

約数ペア:

[(1, 207821943), (3, 69273981), (7, 29688849), (9, 23091327), (19, 10937997), (21, 9896283), (27, 7697109), (57, 3645999), (63, 3298761), (81, 2565703), (101, 2057643), (133, 1562571), (171, 1215333), (189, 1099587), (191, 1088073), (303, 685881), (399, 520857), (513, 405111), (567, 366529), (573, 362691), (707, 293949), (909, 228627), (1197, 173619), (1337, 155439), (1539, 135037), (1719, 120897), (1919, 108297), (2121, 97983), (2727, 76209), (3591, 57873), (3629, 57267), (4011, 51813), (5157, 40299), (5757, 36099), (6363, 32661), (8181, 25403), (10773, 19291), (10887, 19089), (12033, 17271), (13433, 15471)]