21609504

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{397}}^1$

素因数の和:429

約数の個数: 144

約数和(自身を含む): 73015488

約数和(自身を除く): 51405984

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 81, 84, 96, 108, 112, 126, 144, 162, 168, 189, 216, 224, 243, 252, 288, 324, 336, 378, 397, 432, 486, 504, 567, 648, 672, 756, 794, 864, 972, 1008, 1134, 1191, 1296, 1512, 1588, 1701, 1944, 2016, 2268, 2382, 2592, 2779, 3024, 3176, 3402, 3573, 3888, 4536, 4764, 5558, 6048, 6352, 6804, 7146, 7776, 8337, 9072, 9528, 10719, 11116, 12704, 13608, 14292, 16674, 18144, 19056, 21438, 22232, 25011, 27216, 28584, 32157, 33348, 38112, 42876, 44464, 50022, 54432, 57168, 64314, 66696, 75033, 85752, 88928, 96471, 100044, 114336, 128628, 133392, 150066, 171504, 192942, 200088, 225099, 257256, 266784, 300132, 343008, 385884, 400176, 450198, 514512, 600264, 675297, 771768, 800352, 900396, 1029024, 1200528, 1350594, 1543536, 1800792, 2401056, 2701188, 3087072, 3601584, 5402376, 7203168, 10804752, 21609504]

約数ペア:

[(1, 21609504), (2, 10804752), (3, 7203168), (4, 5402376), (6, 3601584), (7, 3087072), (8, 2701188), (9, 2401056), (12, 1800792), (14, 1543536), (16, 1350594), (18, 1200528), (21, 1029024), (24, 900396), (27, 800352), (28, 771768), (32, 675297), (36, 600264), (42, 514512), (48, 450198), (54, 400176), (56, 385884), (63, 343008), (72, 300132), (81, 266784), (84, 257256), (96, 225099), (108, 200088), (112, 192942), (126, 171504), (144, 150066), (162, 133392), (168, 128628), (189, 114336), (216, 100044), (224, 96471), (243, 88928), (252, 85752), (288, 75033), (324, 66696), (336, 64314), (378, 57168), (397, 54432), (432, 50022), (486, 44464), (504, 42876), (567, 38112), (648, 33348), (672, 32157), (756, 28584), (794, 27216), (864, 25011), (972, 22232), (1008, 21438), (1134, 19056), (1191, 18144), (1296, 16674), (1512, 14292), (1588, 13608), (1701, 12704), (1944, 11116), (2016, 10719), (2268, 9528), (2382, 9072), (2592, 8337), (2779, 7776), (3024, 7146), (3176, 6804), (3402, 6352), (3573, 6048), (3888, 5558), (4536, 4764)]