209312719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{118189}}^1$

素因数の和:118230

約数の個数: 16

約数和(自身を含む): 272309760

約数和(自身を除く): 62997041

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 118189, 827323, 1300079, 2718347, 9100553, 19028429, 29901817, 209312719]

約数ペア:

[(1, 209312719), (7, 29901817), (11, 19028429), (23, 9100553), (77, 2718347), (161, 1300079), (253, 827323), (1771, 118189)]