1987293

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1229}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 3365280

約数和(自身を除く): 1377987

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1229, 1617, 3687, 8603, 13519, 25809, 40557, 60221, 94633, 180663, 283899, 662431, 1987293]

約数ペア:

[(1, 1987293), (3, 662431), (7, 283899), (11, 180663), (21, 94633), (33, 60221), (49, 40557), (77, 25809), (147, 13519), (231, 8603), (539, 3687), (1229, 1617)]