21406561

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 24127488

約数和(自身を除く): 2720927

約数列:

[1, 11, 43, 167, 271, 473, 1837, 2981, 7181, 11653, 45257, 78991, 128183, 497827, 1946051, 21406561]

約数ペア:

[(1, 21406561), (11, 1946051), (43, 497827), (167, 128183), (271, 78991), (473, 45257), (1837, 11653), (2981, 7181)]