201237561

素因数分解:

$3^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{4111}}^1$

素因数の和:4171

約数の個数: 48

約数和(自身を含む): 356263680

約数和(自身を除く): 155026119

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 111, 147, 189, 259, 333, 441, 777, 999, 1323, 1813, 2331, 4111, 5439, 6993, 12333, 16317, 28777, 36999, 48951, 86331, 110997, 152107, 201439, 258993, 456321, 604317, 776979, 1064749, 1368963, 1812951, 3194247, 4106889, 5438853, 7453243, 9582741, 22359729, 28748223, 67079187, 201237561]

約数ペア:

[(1, 201237561), (3, 67079187), (7, 28748223), (9, 22359729), (21, 9582741), (27, 7453243), (37, 5438853), (49, 4106889), (63, 3194247), (111, 1812951), (147, 1368963), (189, 1064749), (259, 776979), (333, 604317), (441, 456321), (777, 258993), (999, 201439), (1323, 152107), (1813, 110997), (2331, 86331), (4111, 48951), (5439, 36999), (6993, 28777), (12333, 16317)]