2505643

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:306

約数の個数: 16

約数和(自身を含む): 3041280

約数和(自身を除く): 535637

約数列:

[1, 7, 23, 79, 161, 197, 553, 1379, 1817, 4531, 12719, 15563, 31717, 108941, 357949, 2505643]

約数ペア:

[(1, 2505643), (7, 357949), (23, 108941), (79, 31717), (161, 15563), (197, 12719), (553, 4531), (1379, 1817)]