221576721

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{3527}}^1$

素因数の和:4060

約数の個数: 16

約数和(自身を含む): 303012864

約数和(自身を除く): 81436143

約数列:

[1, 3, 43, 129, 487, 1461, 3527, 10581, 20941, 62823, 151661, 454983, 1717649, 5152947, 73858907, 221576721]

約数ペア:

[(1, 221576721), (3, 73858907), (43, 5152947), (129, 1717649), (487, 454983), (1461, 151661), (3527, 62823), (10581, 20941)]