20953856

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1063}}^1$

素因数の和:1097

約数の個数: 72

約数和(自身を含む): 52195584

約数和(自身を除く): 31241728

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 616, 704, 896, 1063, 1232, 1408, 1792, 2126, 2464, 2816, 4252, 4928, 7441, 8504, 9856, 11693, 14882, 17008, 19712, 23386, 29764, 34016, 46772, 59528, 68032, 81851, 93544, 119056, 136064, 163702, 187088, 238112, 272128, 327404, 374176, 476224, 654808, 748352, 952448, 1309616, 1496704, 1904896, 2619232, 2993408, 5238464, 10476928, 20953856]

約数ペア:

[(1, 20953856), (2, 10476928), (4, 5238464), (7, 2993408), (8, 2619232), (11, 1904896), (14, 1496704), (16, 1309616), (22, 952448), (28, 748352), (32, 654808), (44, 476224), (56, 374176), (64, 327404), (77, 272128), (88, 238112), (112, 187088), (128, 163702), (154, 136064), (176, 119056), (224, 93544), (256, 81851), (308, 68032), (352, 59528), (448, 46772), (616, 34016), (704, 29764), (896, 23386), (1063, 19712), (1232, 17008), (1408, 14882), (1792, 11693), (2126, 9856), (2464, 8504), (2816, 7441), (4252, 4928)]