21990136

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10613}}^1$

素因数の和:10663

約数の個数: 32

約数和(自身を含む): 48399840

約数和(自身を除く): 26409704

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 10613, 21226, 42452, 74291, 84904, 148582, 297164, 392681, 594328, 785362, 1570724, 2748767, 3141448, 5497534, 10995068, 21990136]

約数ペア:

[(1, 21990136), (2, 10995068), (4, 5497534), (7, 3141448), (8, 2748767), (14, 1570724), (28, 785362), (37, 594328), (56, 392681), (74, 297164), (148, 148582), (259, 84904), (296, 74291), (518, 42452), (1036, 21226), (2072, 10613)]