212339979

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 343429632

約数和(自身を除く): 131089653

約数列:

[1, 3, 9, 17, 23, 51, 69, 83, 153, 207, 249, 391, 727, 747, 1173, 1411, 1909, 2181, 3519, 4233, 5727, 6543, 12359, 12699, 16721, 17181, 32453, 37077, 50163, 60341, 97359, 111231, 150489, 181023, 284257, 292077, 543069, 852771, 1025797, 1387843, 2558313, 3077391, 4163529, 9232173, 12490587, 23593331, 70779993, 212339979]

約数ペア:

[(1, 212339979), (3, 70779993), (9, 23593331), (17, 12490587), (23, 9232173), (51, 4163529), (69, 3077391), (83, 2558313), (153, 1387843), (207, 1025797), (249, 852771), (391, 543069), (727, 292077), (747, 284257), (1173, 181023), (1411, 150489), (1909, 111231), (2181, 97359), (3519, 60341), (4233, 50163), (5727, 37077), (6543, 32453), (12359, 17181), (12699, 16721)]