211455945

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{1051}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 389930112

約数和(自身を除く): 178474167

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 263, 765, 789, 1051, 1315, 2367, 3153, 3945, 4471, 5255, 9459, 11835, 13413, 15765, 17867, 22355, 40239, 47295, 53601, 67065, 89335, 160803, 201195, 268005, 276413, 804015, 829239, 1382065, 2487717, 4146195, 4699021, 12438585, 14097063, 23495105, 42291189, 70485315, 211455945]

約数ペア:

[(1, 211455945), (3, 70485315), (5, 42291189), (9, 23495105), (15, 14097063), (17, 12438585), (45, 4699021), (51, 4146195), (85, 2487717), (153, 1382065), (255, 829239), (263, 804015), (765, 276413), (789, 268005), (1051, 201195), (1315, 160803), (2367, 89335), (3153, 67065), (3945, 53601), (4471, 47295), (5255, 40239), (9459, 22355), (11835, 17867), (13413, 15765)]