20284866

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{809}}^1$

素因数の和:1023

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 30259134

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 199, 398, 597, 809, 1194, 1393, 1618, 1791, 2427, 2786, 3582, 4179, 4854, 5663, 7281, 8358, 11326, 12537, 14562, 16989, 25074, 33978, 50967, 101934, 160991, 321982, 482973, 965946, 1126937, 1448919, 2253874, 2897838, 3380811, 6761622, 10142433, 20284866]

約数ペア:

[(1, 20284866), (2, 10142433), (3, 6761622), (6, 3380811), (7, 2897838), (9, 2253874), (14, 1448919), (18, 1126937), (21, 965946), (42, 482973), (63, 321982), (126, 160991), (199, 101934), (398, 50967), (597, 33978), (809, 25074), (1194, 16989), (1393, 14562), (1618, 12537), (1791, 11326), (2427, 8358), (2786, 7281), (3582, 5663), (4179, 4854)]