30987187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{17497}}^1$

素因数の和:17538

約数の個数: 16

約数和(自身を含む): 40315392

約数和(自身を除く): 9328205

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 17497, 122479, 192467, 402431, 1347269, 2817017, 4426741, 30987187]

約数ペア:

[(1, 30987187), (7, 4426741), (11, 2817017), (23, 1347269), (77, 402431), (161, 192467), (253, 122479), (1771, 17497)]