20289312722

素因数分解:

$2^1\times 7^1\times {\mathrm{68209}}^1\times {\mathrm{21247}}^1$

素因数の和:89465

約数の個数: 16

約数和(自身を含む): 34783825920

約数和(自身を除く): 14494513198

約数列:

[1, 2, 7, 14, 21247, 42494, 68209, 136418, 148729, 297458, 477463, 954926, 1449236623, 2898473246, 10144656361, 20289312722]

約数ペア:

[(1, 20289312722), (2, 10144656361), (7, 2898473246), (14, 1449236623), (21247, 954926), (42494, 477463), (68209, 297458), (136418, 148729)]