72157021083

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{17207}}^1$

素因数の和:17521

約数の個数: 72

約数和(自身を含む): 125012058912

約数和(自身を除く): 52855037829

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 257, 259, 333, 441, 771, 777, 1799, 1813, 2313, 2331, 5397, 5439, 9509, 12593, 16191, 16317, 17207, 28527, 37779, 51621, 66563, 85581, 113337, 120449, 154863, 199689, 361347, 465941, 599067, 636659, 843143, 1084041, 1397823, 1909977, 2529429, 4193469, 4422199, 4456613, 5729931, 7588287, 13266597, 13369839, 30955393, 31196291, 39799791, 40109517, 92866179, 93588873, 163621363, 216687751, 278598537, 280766619, 490864089, 650063253, 1145349541, 1472592267, 1950189759, 3436048623, 8017446787, 10308145869, 24052340361, 72157021083]

約数ペア:

[(1, 72157021083), (3, 24052340361), (7, 10308145869), (9, 8017446787), (21, 3436048623), (37, 1950189759), (49, 1472592267), (63, 1145349541), (111, 650063253), (147, 490864089), (257, 280766619), (259, 278598537), (333, 216687751), (441, 163621363), (771, 93588873), (777, 92866179), (1799, 40109517), (1813, 39799791), (2313, 31196291), (2331, 30955393), (5397, 13369839), (5439, 13266597), (9509, 7588287), (12593, 5729931), (16191, 4456613), (16317, 4422199), (17207, 4193469), (28527, 2529429), (37779, 1909977), (51621, 1397823), (66563, 1084041), (85581, 843143), (113337, 636659), (120449, 599067), (154863, 465941), (199689, 361347)]