287157003

素因数分解:

$3^1\times 7^2\times {\mathrm{727}}^1\times {\mathrm{2687}}^1$

素因数の和:3431

約数の個数: 24

約数和(自身を含む): 446164992

約数和(自身を除く): 159007989

約数列:

[1, 3, 7, 21, 49, 147, 727, 2181, 2687, 5089, 8061, 15267, 18809, 35623, 56427, 106869, 131663, 394989, 1953449, 5860347, 13674143, 41022429, 95719001, 287157003]

約数ペア:

[(1, 287157003), (3, 95719001), (7, 41022429), (21, 13674143), (49, 5860347), (147, 1953449), (727, 394989), (2181, 131663), (2687, 106869), (5089, 56427), (8061, 35623), (15267, 18809)]