128643886

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137147}}^1$

素因数の和:137223

約数の個数: 16

約数和(自身を含む): 223825536

約数和(自身を除く): 95181650

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 137147, 274294, 960029, 1920058, 9188849, 18377698, 64321943, 128643886]

約数ペア:

[(1, 128643886), (2, 64321943), (7, 18377698), (14, 9188849), (67, 1920058), (134, 960029), (469, 274294), (938, 137147)]