21394732

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{3907}}^1$

素因数の和:3985

約数の個数: 18

約数和(自身を含む): 38489892

約数和(自身を除く): 17095160

約数列:

[1, 2, 4, 37, 74, 148, 1369, 2738, 3907, 5476, 7814, 15628, 144559, 289118, 578236, 5348683, 10697366, 21394732]

約数ペア:

[(1, 21394732), (2, 10697366), (4, 5348683), (37, 578236), (74, 289118), (148, 144559), (1369, 15628), (2738, 7814), (3907, 5476)]