21248678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8861}}^1$

素因数の和:8983

約数の個数: 16

約数和(自身を含む): 35093520

約数和(自身を除く): 13844842

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8861, 17722, 97471, 194942, 965849, 1931698, 10624339, 21248678]

約数ペア:

[(1, 21248678), (2, 10624339), (11, 1931698), (22, 965849), (109, 194942), (218, 97471), (1199, 17722), (2398, 8861)]