217261979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{45197}}^1$

素因数の和:45250

約数の個数: 16

約数和(自身を含む): 260340480

約数和(自身を除く): 43078501

約数列:

[1, 11, 19, 23, 209, 253, 437, 4807, 45197, 497167, 858743, 1039531, 9446173, 11434841, 19751089, 217261979]

約数ペア:

[(1, 217261979), (11, 19751089), (19, 11434841), (23, 9446173), (209, 1039531), (253, 858743), (437, 497167), (4807, 45197)]