221520291

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{47917}}^1$

素因数の和:48010

約数の個数: 16

約数和(自身を含む): 312808704

約数和(自身を除く): 91288413

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4623, 47917, 143751, 1102091, 3210439, 3306273, 9631317, 73840097, 221520291]

約数ペア:

[(1, 221520291), (3, 73840097), (23, 9631317), (67, 3306273), (69, 3210439), (201, 1102091), (1541, 143751), (4623, 47917)]