208095237

素因数分解:

$3^8\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 374115456

約数和(自身を除く): 166020219

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 197, 207, 243, 483, 567, 591, 621, 729, 1379, 1449, 1701, 1773, 1863, 2187, 4137, 4347, 4531, 5103, 5319, 5589, 6561, 12411, 13041, 13593, 15309, 15957, 16767, 31717, 37233, 39123, 40779, 45927, 47871, 50301, 95151, 111699, 117369, 122337, 143613, 150903, 285453, 335097, 352107, 367011, 430839, 856359, 1005291, 1056321, 1101033, 1292517, 2569077, 3015873, 3303099, 7707231, 9047619, 9909297, 23121693, 29727891, 69365079, 208095237]

約数ペア:

[(1, 208095237), (3, 69365079), (7, 29727891), (9, 23121693), (21, 9909297), (23, 9047619), (27, 7707231), (63, 3303099), (69, 3015873), (81, 2569077), (161, 1292517), (189, 1101033), (197, 1056321), (207, 1005291), (243, 856359), (483, 430839), (567, 367011), (591, 352107), (621, 335097), (729, 285453), (1379, 150903), (1449, 143613), (1701, 122337), (1773, 117369), (1863, 111699), (2187, 95151), (4137, 50301), (4347, 47871), (4531, 45927), (5103, 40779), (5319, 39123), (5589, 37233), (6561, 31717), (12411, 16767), (13041, 15957), (13593, 15309)]