18986705

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1607}}^1$

素因数の和:1768

約数の個数: 16

約数和(自身を含む): 24312960

約数和(自身を除く): 5326255

約数列:

[1, 5, 17, 85, 139, 695, 1607, 2363, 8035, 11815, 27319, 136595, 223373, 1116865, 3797341, 18986705]

約数ペア:

[(1, 18986705), (5, 3797341), (17, 1116865), (85, 223373), (139, 136595), (695, 27319), (1607, 11815), (2363, 8035)]