78351231

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1499}}^1$

素因数の和:1659

約数の個数: 32

約数和(自身を含む): 126720000

約数和(自身を除く): 48368769

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 1499, 2489, 2751, 4497, 7467, 10493, 17423, 28481, 31479, 52269, 85443, 196369, 199367, 589107, 598101, 1374583, 3731011, 4123749, 11193033, 26117077, 78351231]

約数ペア:

[(1, 78351231), (3, 26117077), (7, 11193033), (19, 4123749), (21, 3731011), (57, 1374583), (131, 598101), (133, 589107), (393, 199367), (399, 196369), (917, 85443), (1499, 52269), (2489, 31479), (2751, 28481), (4497, 17423), (7467, 10493)]