78661317

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{2689}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 122664000

約数和(自身を除く): 44002683

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 1393, 2689, 4179, 8067, 9751, 18823, 29253, 56469, 131761, 395283, 535111, 1605333, 3745777, 11237331, 26220439, 78661317]

約数ペア:

[(1, 78661317), (3, 26220439), (7, 11237331), (21, 3745777), (49, 1605333), (147, 535111), (199, 395283), (597, 131761), (1393, 56469), (2689, 29253), (4179, 18823), (8067, 9751)]