205721453

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 254016000

約数和(自身を除く): 48294547

約数列:

[1, 7, 23, 49, 89, 161, 293, 343, 623, 1127, 2047, 2051, 4361, 6739, 7889, 14329, 14357, 26077, 30527, 47173, 100303, 100499, 182539, 330211, 599771, 702121, 1277773, 2311477, 4198397, 8944411, 29388779, 205721453]

約数ペア:

[(1, 205721453), (7, 29388779), (23, 8944411), (49, 4198397), (89, 2311477), (161, 1277773), (293, 702121), (343, 599771), (623, 330211), (1127, 182539), (2047, 100499), (2051, 100303), (4361, 47173), (6739, 30527), (7889, 26077), (14329, 14357)]