221511368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 466206720

約数和(自身を除く): 244695352

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 127, 248, 254, 403, 508, 541, 806, 1016, 1082, 1612, 1651, 2164, 3224, 3302, 3937, 4328, 6604, 7033, 7874, 13208, 14066, 15748, 16771, 28132, 31496, 33542, 51181, 56264, 67084, 68707, 102362, 134168, 137414, 204724, 218023, 274828, 409448, 436046, 549656, 872092, 893191, 1744184, 1786382, 2129917, 3572764, 4259834, 7145528, 8519668, 17039336, 27688921, 55377842, 110755684, 221511368]

約数ペア:

[(1, 221511368), (2, 110755684), (4, 55377842), (8, 27688921), (13, 17039336), (26, 8519668), (31, 7145528), (52, 4259834), (62, 3572764), (104, 2129917), (124, 1786382), (127, 1744184), (248, 893191), (254, 872092), (403, 549656), (508, 436046), (541, 409448), (806, 274828), (1016, 218023), (1082, 204724), (1612, 137414), (1651, 134168), (2164, 102362), (3224, 68707), (3302, 67084), (3937, 56264), (4328, 51181), (6604, 33542), (7033, 31496), (7874, 28132), (13208, 16771), (14066, 15748)]