21321258

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2551}}^1$

素因数の和:2762

約数の個数: 32

約数和(自身を含む): 48998400

約数和(自身を除く): 27677142

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 199, 398, 597, 1194, 1393, 2551, 2786, 4179, 5102, 7653, 8358, 15306, 17857, 35714, 53571, 107142, 507649, 1015298, 1522947, 3045894, 3553543, 7107086, 10660629, 21321258]

約数ペア:

[(1, 21321258), (2, 10660629), (3, 7107086), (6, 3553543), (7, 3045894), (14, 1522947), (21, 1015298), (42, 507649), (199, 107142), (398, 53571), (597, 35714), (1194, 17857), (1393, 15306), (2551, 8358), (2786, 7653), (4179, 5102)]