31978618

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{16433}}^1$

素因数の和:16581

約数の個数: 16

約数和(自身を含む): 55218240

約数和(自身を除く): 23239622

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 16433, 32866, 115031, 230062, 2284187, 4568374, 15989309, 31978618]

約数ペア:

[(1, 31978618), (2, 15989309), (7, 4568374), (14, 2284187), (139, 230062), (278, 115031), (973, 32866), (1946, 16433)]