12571996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3847}}^1$

素因数の和:3913

約数の個数: 24

約数和(自身を含む): 23703680

約数和(自身を除く): 11131684

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 3847, 7694, 15388, 73093, 146186, 165421, 292372, 330842, 661684, 3142999, 6285998, 12571996]

約数ペア:

[(1, 12571996), (2, 6285998), (4, 3142999), (19, 661684), (38, 330842), (43, 292372), (76, 165421), (86, 146186), (172, 73093), (817, 15388), (1634, 7694), (3268, 3847)]