21000886414088

素因数分解:

$2^3\times 7^1\times {\mathrm{907}}^1\times {\mathrm{413468389}}^1$

素因数の和:413469309

約数の個数: 32

約数和(自身を含む): 45051515774400

約数和(自身を除く): 24050629360312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 907, 1814, 3628, 6349, 7256, 12698, 25396, 50792, 413468389, 826936778, 1653873556, 2894278723, 3307747112, 5788557446, 11577114892, 23154229784, 375015828823, 750031657646, 1500063315292, 2625110801761, 3000126630584, 5250221603522, 10500443207044, 21000886414088]

約数ペア:

[(1, 21000886414088), (2, 10500443207044), (4, 5250221603522), (7, 3000126630584), (8, 2625110801761), (14, 1500063315292), (28, 750031657646), (56, 375015828823), (907, 23154229784), (1814, 11577114892), (3628, 5788557446), (6349, 3307747112), (7256, 2894278723), (12698, 1653873556), (25396, 826936778), (50792, 413468389)]