12198779

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 13440000

約数和(自身を除く): 1241221

約数列:

[1, 19, 31, 139, 149, 589, 2641, 2831, 4309, 4619, 20711, 81871, 87761, 393509, 642041, 12198779]

約数ペア:

[(1, 12198779), (19, 642041), (31, 393509), (139, 87761), (149, 81871), (589, 20711), (2641, 4619), (2831, 4309)]