21000496932

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{106121}}^1$

素因数の和:106393

約数の個数: 72

約数和(自身を含む): 55624907520

約数和(自身を除く): 34624410588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 239, 276, 414, 478, 717, 828, 956, 1434, 2151, 2868, 4302, 5497, 8604, 10994, 16491, 21988, 32982, 49473, 65964, 98946, 106121, 197892, 212242, 318363, 424484, 636726, 955089, 1273452, 1910178, 2440783, 3820356, 4881566, 7322349, 9763132, 14644698, 21967047, 25362919, 29289396, 43934094, 50725838, 76088757, 87868188, 101451676, 152177514, 228266271, 304355028, 456532542, 583347137, 913065084, 1166694274, 1750041411, 2333388548, 3500082822, 5250124233, 7000165644, 10500248466, 21000496932]

約数ペア:

[(1, 21000496932), (2, 10500248466), (3, 7000165644), (4, 5250124233), (6, 3500082822), (9, 2333388548), (12, 1750041411), (18, 1166694274), (23, 913065084), (36, 583347137), (46, 456532542), (69, 304355028), (92, 228266271), (138, 152177514), (207, 101451676), (239, 87868188), (276, 76088757), (414, 50725838), (478, 43934094), (717, 29289396), (828, 25362919), (956, 21967047), (1434, 14644698), (2151, 9763132), (2868, 7322349), (4302, 4881566), (5497, 3820356), (8604, 2440783), (10994, 1910178), (16491, 1273452), (21988, 955089), (32982, 636726), (49473, 424484), (65964, 318363), (98946, 212242), (106121, 197892)]