18969874

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:838

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 16742126

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 199, 398, 619, 1238, 1393, 2189, 2786, 4333, 4378, 6809, 8666, 13618, 15323, 30646, 47663, 95326, 123181, 246362, 862267, 1354991, 1724534, 2709982, 9484937, 18969874]

約数ペア:

[(1, 18969874), (2, 9484937), (7, 2709982), (11, 1724534), (14, 1354991), (22, 862267), (77, 246362), (154, 123181), (199, 95326), (398, 47663), (619, 30646), (1238, 15323), (1393, 13618), (2189, 8666), (2786, 6809), (4333, 4378)]