28091119

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{1171}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 33753600

約数和(自身を除く): 5662481

約数列:

[1, 7, 23, 149, 161, 1043, 1171, 3427, 8197, 23989, 26933, 174479, 188531, 1221353, 4013017, 28091119]

約数ペア:

[(1, 28091119), (7, 4013017), (23, 1221353), (149, 188531), (161, 174479), (1043, 26933), (1171, 23989), (3427, 8197)]