18308941

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{607}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 21790720

約数和(自身を除く): 3481779

約数列:

[1, 7, 31, 139, 217, 607, 973, 4249, 4309, 18817, 30163, 84373, 131719, 590611, 2615563, 18308941]

約数ペア:

[(1, 18308941), (7, 2615563), (31, 590611), (139, 131719), (217, 84373), (607, 30163), (973, 18817), (4249, 4309)]