15386931

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 28383264

約数和(自身を除く): 12996333

約数列:

[1, 3, 7, 9, 21, 23, 37, 41, 49, 63, 69, 111, 123, 147, 161, 207, 259, 287, 333, 369, 441, 483, 777, 851, 861, 943, 1127, 1449, 1517, 1813, 2009, 2331, 2553, 2583, 2829, 3381, 4551, 5439, 5957, 6027, 6601, 7659, 8487, 10143, 10619, 13653, 16317, 17871, 18081, 19803, 31857, 34891, 41699, 46207, 53613, 59409, 74333, 95571, 104673, 125097, 138621, 222999, 244237, 314019, 375291, 415863, 668997, 732711, 1709659, 2198133, 5128977, 15386931]

約数ペア:

[(1, 15386931), (3, 5128977), (7, 2198133), (9, 1709659), (21, 732711), (23, 668997), (37, 415863), (41, 375291), (49, 314019), (63, 244237), (69, 222999), (111, 138621), (123, 125097), (147, 104673), (161, 95571), (207, 74333), (259, 59409), (287, 53613), (333, 46207), (369, 41699), (441, 34891), (483, 31857), (777, 19803), (851, 18081), (861, 17871), (943, 16317), (1127, 13653), (1449, 10619), (1517, 10143), (1813, 8487), (2009, 7659), (2331, 6601), (2553, 6027), (2583, 5957), (2829, 5439), (3381, 4551)]