20178086187

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2531}}^1\times {\mathrm{5347}}^1$

素因数の和:7959

約数の個数: 32

約数和(自身を含む): 31198777344

約数和(自身を除く): 11020691157

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 2531, 5347, 7593, 16041, 17717, 37429, 53151, 112287, 179701, 379637, 539103, 1138911, 1257907, 2657459, 3773721, 7972377, 13533257, 40599771, 94732799, 284198397, 960861247, 2882583741, 6726028729, 20178086187]

約数ペア:

[(1, 20178086187), (3, 6726028729), (7, 2882583741), (21, 960861247), (71, 284198397), (213, 94732799), (497, 40599771), (1491, 13533257), (2531, 7972377), (5347, 3773721), (7593, 2657459), (16041, 1257907), (17717, 1138911), (37429, 539103), (53151, 379637), (112287, 179701)]