19937456

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16183}}^1$

素因数の和:16209

約数の個数: 40

約数和(自身を含む): 48163584

約数和(自身を除く): 28226128

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16183, 32366, 64732, 113281, 129464, 178013, 226562, 258928, 356026, 453124, 712052, 906248, 1246091, 1424104, 1812496, 2492182, 2848208, 4984364, 9968728, 19937456]

約数ペア:

[(1, 19937456), (2, 9968728), (4, 4984364), (7, 2848208), (8, 2492182), (11, 1812496), (14, 1424104), (16, 1246091), (22, 906248), (28, 712052), (44, 453124), (56, 356026), (77, 258928), (88, 226562), (112, 178013), (154, 129464), (176, 113281), (308, 64732), (616, 32366), (1232, 16183)]