21828310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1567}}^1$

素因数の和:1780

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 23330090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1567, 1990, 2786, 3134, 6965, 7835, 10969, 13930, 15670, 21938, 54845, 109690, 311833, 623666, 1559165, 2182831, 3118330, 4365662, 10914155, 21828310]

約数ペア:

[(1, 21828310), (2, 10914155), (5, 4365662), (7, 3118330), (10, 2182831), (14, 1559165), (35, 623666), (70, 311833), (199, 109690), (398, 54845), (995, 21938), (1393, 15670), (1567, 13930), (1990, 10969), (2786, 7835), (3134, 6965)]