20881056

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 66878784

約数和(自身を除く): 45997728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 49, 56, 69, 84, 92, 96, 98, 112, 138, 147, 161, 168, 184, 193, 196, 224, 276, 294, 322, 336, 368, 386, 392, 483, 552, 579, 588, 644, 672, 736, 772, 784, 966, 1104, 1127, 1158, 1176, 1288, 1351, 1544, 1568, 1932, 2208, 2254, 2316, 2352, 2576, 2702, 3088, 3381, 3864, 4053, 4439, 4508, 4632, 4704, 5152, 5404, 6176, 6762, 7728, 8106, 8878, 9016, 9264, 9457, 10808, 13317, 13524, 15456, 16212, 17756, 18032, 18528, 18914, 21616, 26634, 27048, 28371, 31073, 32424, 35512, 36064, 37828, 43232, 53268, 54096, 56742, 62146, 64848, 71024, 75656, 93219, 106536, 108192, 113484, 124292, 129696, 142048, 151312, 186438, 213072, 217511, 226968, 248584, 302624, 372876, 426144, 435022, 453936, 497168, 652533, 745752, 870044, 907872, 994336, 1305066, 1491504, 1740088, 2610132, 2983008, 3480176, 5220264, 6960352, 10440528, 20881056]

約数ペア:

[(1, 20881056), (2, 10440528), (3, 6960352), (4, 5220264), (6, 3480176), (7, 2983008), (8, 2610132), (12, 1740088), (14, 1491504), (16, 1305066), (21, 994336), (23, 907872), (24, 870044), (28, 745752), (32, 652533), (42, 497168), (46, 453936), (48, 435022), (49, 426144), (56, 372876), (69, 302624), (84, 248584), (92, 226968), (96, 217511), (98, 213072), (112, 186438), (138, 151312), (147, 142048), (161, 129696), (168, 124292), (184, 113484), (193, 108192), (196, 106536), (224, 93219), (276, 75656), (294, 71024), (322, 64848), (336, 62146), (368, 56742), (386, 54096), (392, 53268), (483, 43232), (552, 37828), (579, 36064), (588, 35512), (644, 32424), (672, 31073), (736, 28371), (772, 27048), (784, 26634), (966, 21616), (1104, 18914), (1127, 18528), (1158, 18032), (1176, 17756), (1288, 16212), (1351, 15456), (1544, 13524), (1568, 13317), (1932, 10808), (2208, 9457), (2254, 9264), (2316, 9016), (2352, 8878), (2576, 8106), (2702, 7728), (3088, 6762), (3381, 6176), (3864, 5404), (4053, 5152), (4439, 4704), (4508, 4632)]